diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3cfeba9c1..f0fd002f4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,19 @@ Nodes
  - TCP: Add TLS option to tcp client nodes (#3307) @dceejay
  - WebSocket: Implemented support for Websocket Subprotocols in WS Client Node. (#3333) @tobiasoort
 
+#### 2.1.6: Maintenance Release
+
+Editor
+
+ - Revert copy-text change and apply alternative fix (#3363) @knolleary
+ - Update marked to latest (#3362) @knolleary
+ - fix to make start of property error tooltip messages aligned (#3358) @HiroyasuNishiyama
+
+Nodes
+
+ - Inject: fix JSON propety validation of inject node (#3349) @HiroyasuNishiyama
+ - Delay: fix unit value validation of delay node (#3351) @HiroyasuNishiyama
+
 #### 2.1.5: Maintenance Release
 
 Runtime
diff --git a/package.json b/package.json
index c07d17a98..fb775eeb3 100644
--- a/package.json
+++ b/package.json
@@ -107,7 +107,7 @@
         "i18next-http-backend": "1.3.1",
         "jquery-i18next": "1.2.1",
         "jsdoc-nr-template": "github:node-red/jsdoc-nr-template",
-        "marked": "3.0.7",
+        "marked": "4.0.10",
         "minami": "1.2.3",
         "mocha": "9.1.3",
         "node-red-node-test-helper": "^0.2.7",
diff --git a/packages/node_modules/@node-red/editor-client/locales/en-US/editor.json b/packages/node_modules/@node-red/editor-client/locales/en-US/editor.json
index cbc29185d..0c4edb87b 100755
--- a/packages/node_modules/@node-red/editor-client/locales/en-US/editor.json
+++ b/packages/node_modules/@node-red/editor-client/locales/en-US/editor.json
@@ -75,6 +75,8 @@
             "view": {
                 "view": "View",
                 "grid": "Grid",
+                "storeZoom": "Restore zoom level on load",
+                "storePosition": "Restore scroll position on load",
                 "showGrid": "Show grid",
                 "snapGrid": "Snap to grid",
                 "gridSize": "Grid size",
diff --git a/packages/node_modules/@node-red/editor-client/src/js/red.js b/packages/node_modules/@node-red/editor-client/src/js/red.js
index 36e45e570..2b1c8f2e4 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/red.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/red.js
@@ -556,8 +556,7 @@ var RED = (function() {
 
         $(".red-ui-header-toolbar").show();
 
-
-        RED.sidebar.show(":first");
+        RED.sidebar.show(":first", true);
 
         setTimeout(function() {
             loader.end();
diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/clipboard.js b/packages/node_modules/@node-red/editor-client/src/js/ui/clipboard.js
index f6a613f5f..cde9da938 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/clipboard.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/clipboard.js
@@ -946,23 +946,26 @@ RED.clipboard = (function() {
         if (truncated) {
             msg += "_truncated";
         }
-        navigator.clipboard.writeText(value).then(function () {
-            if (element) {
-                var popover = RED.popover.create({
-                    target: element,
-                    direction: 'left',
-                    size: 'small',
-                    content: RED._(msg)
-                });
-                setTimeout(function() {
-                    popover.close();
-                },1000);
-                popover.open();
-            }
-            if (currentFocus) {
-                $(currentFocus).focus();
-            }
-        }).catch(err => { console.error("Failed to copy:",err) });
+        var clipboardHidden = $('<textarea type="text" id="red-ui-clipboard-hidden" tabIndex="-1">').appendTo(document.body);
+        clipboardHidden.val(value).focus().select();
+        var result =  document.execCommand("copy");
+        if (result && element) {
+            var popover = RED.popover.create({
+                target: element,
+                direction: 'left',
+                size: 'small',
+                content: RED._(msg)
+            });
+            setTimeout(function() {
+                popover.close();
+            },1000);
+            popover.open();
+        }
+        clipboardHidden.remove();
+        if (currentFocus) {
+            $(currentFocus).focus();
+        }
+        return result;
     }
 
     function importNodes(nodesStr,addFlow) {
diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/sidebar.js b/packages/node_modules/@node-red/editor-client/src/js/ui/sidebar.js
index 7402870d4..eb10fe043 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/sidebar.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/sidebar.js
@@ -19,6 +19,15 @@ RED.sidebar = (function() {
     var sidebar_tabs;
     var knownTabs = {};
 
+    // We store the current sidebar tab id in localStorage as 'last-sidebar-tab'
+    // This is restored when the editor is reloaded.
+    // We use sidebar_tabs.onchange to update localStorage. However that will
+    // also get triggered when the first tab gets added to the tabs - typically
+    // the 'info' tab. So we use the following variable to store the retrieved
+    // value from localStorage before we start adding the actual tabs
+    var lastSessionSelectedTab = null;
+
+
     function addTab(title,content,closeable,visible) {
         var options;
         if (typeof title === "string") {
@@ -194,16 +203,16 @@ RED.sidebar = (function() {
         RED.events.emit("sidebar:resize");
     }
 
-    function showSidebar(id) {
+    function showSidebar(id, skipShowSidebar) {
         if (id === ":first") {
-            id = RED.settings.get("editor.sidebar.order",["info", "help", "version-control", "debug"])[0]
+            id = lastSessionSelectedTab || RED.settings.get("editor.sidebar.order",["info", "help", "version-control", "debug"])[0]
         }
         if (id) {
             if (!containsTab(id) && knownTabs[id]) {
                 sidebar_tabs.addTab(knownTabs[id]);
             }
             sidebar_tabs.activateTab(id);
-            if (!RED.menu.isSelected("menu-item-sidebar")) {
+            if (!skipShowSidebar && !RED.menu.isSelected("menu-item-sidebar")) {
                 RED.menu.setSelected("menu-item-sidebar",true);
             }
         }
@@ -227,6 +236,7 @@ RED.sidebar = (function() {
                 if (tab.toolbar) {
                     $(tab.toolbar).show();
                 }
+                RED.settings.setLocal("last-sidebar-tab", tab.id)
             },
             onremove: function(tab) {
                 $(tab.wrapper).hide();
@@ -255,7 +265,9 @@ RED.sidebar = (function() {
             }
         });
         RED.popover.tooltip($("#red-ui-sidebar-separator").find(".red-ui-sidebar-control-right"),RED._("keyboard.toggleSidebar"),"core:toggle-sidebar");
-        showSidebar();
+
+        lastSessionSelectedTab = RED.settings.getLocal("last-sidebar-tab")
+
         RED.sidebar.info.init();
         RED.sidebar.help.init();
         RED.sidebar.config.init();
diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/userSettings.js b/packages/node_modules/@node-red/editor-client/src/js/ui/userSettings.js
index 3c1e295d2..1b61f396e 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/userSettings.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/userSettings.js
@@ -121,6 +121,13 @@ RED.userSettings = (function() {
         //         {setting:"theme", label:"Theme",options:function(done){ done([{val:'',text:'default'}].concat(RED.settings.theme("themes"))) }},
         //     ]
         // },
+        {
+            title: "menu.label.view.view",
+            options: [
+                {setting:"view-store-zoom",label:"menu.label.view.storeZoom", default: false, toggle:true, onchange: function(val) { if (!val) { RED.settings.removeLocal("zoom-level")}}},
+                {setting:"view-store-position",label:"menu.label.view.storePosition", default: false, toggle:true, onchange: function(val) { if (!val) { RED.settings.removeLocal("scroll-positions")}}},
+            ]
+        },
         {
             title: "menu.label.view.grid",
             options: [
diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/utils.js b/packages/node_modules/@node-red/editor-client/src/js/ui/utils.js
index 2f5f7063e..33f6c3ea1 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/utils.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/utils.js
@@ -109,7 +109,7 @@ RED.utils = (function() {
     window._marked.use({extensions: [descriptionList, description] } );
 
     function renderMarkdown(txt) {
-        var rendered = _marked(txt);
+        var rendered = _marked.parse(txt);
         var cleaned = DOMPurify.sanitize(rendered, {SAFE_FOR_JQUERY: true})
         return cleaned;
     }
diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/view.js b/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
index 3edb2ed39..7131c8a44 100755
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
@@ -672,12 +672,45 @@ RED.view = (function() {
             },
             tooltip: function(d) {
                 if (d.validationErrors && d.validationErrors.length > 0) {
-                    return RED._("editor.errors.invalidProperties")+"\n  - "+d.validationErrors.join("\n    - ")
+                    return RED._("editor.errors.invalidProperties")+"\n  - "+d.validationErrors.join("\n  - ")
                 }
             },
             show: function(n) { return !n.valid }
         })
 
+        if (RED.settings.get("editor.view.view-store-zoom")) {
+            var  userZoomLevel = parseFloat(RED.settings.getLocal('zoom-level'))
+            if (!isNaN(userZoomLevel)) {
+                scaleFactor = userZoomLevel
+            }
+        }
+
+        var onScrollTimer = null;
+        function storeScrollPosition() {
+            workspaceScrollPositions[RED.workspaces.active()] = {
+                left:chart.scrollLeft(),
+                top:chart.scrollTop()
+            };
+            RED.settings.setLocal('scroll-positions', JSON.stringify(workspaceScrollPositions) )
+        }
+        chart.on("scroll", function() {
+            if (RED.settings.get("editor.view.view-store-position")) {
+                if (onScrollTimer) {
+                    clearTimeout(onScrollTimer)
+                }
+                onScrollTimer = setTimeout(storeScrollPosition, 200);
+            }
+        })
+
+        if (RED.settings.get("editor.view.view-store-position")) {
+            var scrollPositions = RED.settings.getLocal('scroll-positions')
+            if (scrollPositions) {
+                try {
+                    workspaceScrollPositions = JSON.parse(scrollPositions)
+                } catch(err) {
+                }
+            }
+        }
     }
 
 
@@ -1965,6 +1998,7 @@ RED.view = (function() {
     }
     function zoomZero() { zoomView(1); }
 
+
     function zoomView(factor) {
         var screenSize = [chart.width(),chart.height()];
         var scrollPos = [chart.scrollLeft(),chart.scrollTop()];
@@ -1977,6 +2011,9 @@ RED.view = (function() {
 
         RED.view.navigator.resize();
         redraw();
+        if (RED.settings.get("editor.view.view-store-zoom")) {
+            RED.settings.setLocal('zoom-level', factor.toFixed(1))
+        }
     }
 
     function selectNone() {
diff --git a/packages/node_modules/@node-red/editor-client/src/sass/editor.scss b/packages/node_modules/@node-red/editor-client/src/sass/editor.scss
index 96a0f998f..473571042 100644
--- a/packages/node_modules/@node-red/editor-client/src/sass/editor.scss
+++ b/packages/node_modules/@node-red/editor-client/src/sass/editor.scss
@@ -356,6 +356,11 @@ button.red-ui-button-small
     background: $secondary-background;
 }
 
+#red-ui-clipboard-hidden {
+    position: absolute;
+    top: -3000px;
+}
+
 .form-row .red-ui-editor-node-label-form-row {
     margin: 5px 0 0 50px;
     label {
diff --git a/packages/node_modules/@node-red/nodes/core/common/20-inject.html b/packages/node_modules/@node-red/nodes/core/common/20-inject.html
index a5dcb061a..f233c62fd 100644
--- a/packages/node_modules/@node-red/nodes/core/common/20-inject.html
+++ b/packages/node_modules/@node-red/nodes/core/common/20-inject.html
@@ -234,7 +234,7 @@
                             }
                         } else if (v[i].vt === "jsonata") {
                             try{jsonata(v[i].v);}catch(e){return false;}
-                        } else if ([i].vt === "json") {
+                        } else if (v[i].vt === "json") {
                             try{JSON.parse(v[i].v);}catch(e){return false;}
                         }
                     }
diff --git a/packages/node_modules/@node-red/nodes/core/function/89-delay.html b/packages/node_modules/@node-red/nodes/core/function/89-delay.html
index 3ae4637d7..8ee404924 100644
--- a/packages/node_modules/@node-red/nodes/core/function/89-delay.html
+++ b/packages/node_modules/@node-red/nodes/core/function/89-delay.html
@@ -114,7 +114,8 @@
             timeout: {value:"5", required:true, validate:function(v) { return RED.validators.number(v) && (v >= 0); }},
             timeoutUnits: {value:"seconds"},
             rate: {value:"1", required:true, validate:function(v) { return RED.validators.number(v) && (v >= 0); }},
-            nbRateUnits: {value:"1", required:false, validate:RED.validators.regex(/\d+|/)},
+            nbRateUnits: {value:"1", required:false,
+                          validate:function(v) { return RED.validators.number(v) && (v >= 0); }},
             rateUnits: {value: "second"},
             randomFirst: {value:"1", required:true, validate:function(v) { return RED.validators.number(v) && (v >= 0); }},
             randomLast: {value:"5", required:true, validate:function(v) { return RED.validators.number(v) && (v >= 0); }},
diff --git a/packages/node_modules/@node-red/nodes/core/network/21-httprequest.js b/packages/node_modules/@node-red/nodes/core/network/21-httprequest.js
index f5054eb81..bf677b490 100644
--- a/packages/node_modules/@node-red/nodes/core/network/21-httprequest.js
+++ b/packages/node_modules/@node-red/nodes/core/network/21-httprequest.js
@@ -264,7 +264,7 @@ in your Node-RED user directory (${RED.settings.userDir}).
             if (opts.headers.hasOwnProperty('cookie')) {
                 var cookies = cookie.parse(opts.headers.cookie, {decode:String});
                 for (var name in cookies) {
-                    opts.cookieJar.setCookie(cookie.serialize(name, cookies[name], {encode:String}), url, {ignoreError: true});
+                    opts.cookieJar.setCookieSync(cookie.serialize(name, cookies[name], {encode:String}), url, {ignoreError: true});
                 }
                 delete opts.headers.cookie;
             }
@@ -277,13 +277,13 @@ in your Node-RED user directory (${RED.settings.userDir}).
                         } else if (typeof msg.cookies[name] === 'object') {
                             if(msg.cookies[name].encode === false){
                                 // If the encode option is false, the value is not encoded.
-                                opts.cookieJar.setCookie(cookie.serialize(name, msg.cookies[name].value, {encode: String}), url, {ignoreError: true});
+                                opts.cookieJar.setCookieSync(cookie.serialize(name, msg.cookies[name].value, {encode: String}), url, {ignoreError: true});
                             } else {
                                 // The value is encoded by encodeURIComponent().
-                                opts.cookieJar.setCookie(cookie.serialize(name, msg.cookies[name].value), url, {ignoreError: true});
+                                opts.cookieJar.setCookieSync(cookie.serialize(name, msg.cookies[name].value), url, {ignoreError: true});
                             }
                         } else {
-                            opts.cookieJar.setCookie(cookie.serialize(name, msg.cookies[name]), url, {ignoreError: true});
+                            opts.cookieJar.setCookieSync(cookie.serialize(name, msg.cookies[name]), url, {ignoreError: true});
                         }
                     }
                 }