PB-390: Nested Page Builder content can fail to save when action is performed quickly

Author: davemacaulay

app/code/Magento/PageBuilder/view/adminhtml/web/js/master-format/render/frame.js

@@ -142,7 +142,6 @@ function countContentTypes(rootContainer: ContentTypeCollectionInterface, count?
 function render(message: {stageId: string, tree: TreeItem}) {
     return new Promise((resolve, reject) => {
         createRenderTree(message.stageId, message.tree).then((rootContainer: ContentTypeCollectionInterface) => {
-            console.log("createRenderTree");
             const element = document.createElement("div");
             /**
              * Setup an event on the element to observe changes and count the expected amount of content types are
@@ -156,12 +155,13 @@ function render(message: {stageId: string, tree: TreeItem}) {
 
             // Combine this event with our engine waitForRenderFinish to ensure rendering is completed
             $.when(engine.waitForFinishRender(), renderFinished).then(() => {
-                console.log("count " + countContentTypes(rootContainer));
                 observer.disconnect();
-                ko.cleanNode(element);
-                const filtered: JQuery = filterHtml($(element));
-                const output = decodeAllDataUrlsInString(filtered.html());
-                resolve(output);
+                _.defer(() => {
+                    ko.cleanNode(element);
+                    const filtered: JQuery = filterHtml($(element));
+                    const output = decodeAllDataUrlsInString(filtered.html());
+                    resolve(output);
+                });
             });
 
             ko.applyBindingsToNode(
@@ -199,7 +199,6 @@ function createRenderTree(
             tree.data,
             parent !== null ? tree.children.length : null,
         ).then((contentType: ContentTypeCollectionInterface) => {
-            console.log("content type");
             // Ensure  we retain the original tree ID's
             contentType.id = tree.id;
             if (tree.children.length > 0) {