bug fixed

BackendServers/webServer.js

@@ -547,7 +547,7 @@ exports.newWebServer = function newWebServer(EVENTS_SERVER) {
                                 } else {
                                     let updatedFileList = []
                                     for (let i = 0; i < fileList.length; i++) {
-                                        let name = 'Plugin -> ' + fileList[i]
+                                        let name = 'Plugin \u2192 ' + fileList[i]
                                         updatedFileList.push(name)
                                     }
                                     allWorkspaces = allWorkspaces.concat(updatedFileList)

CanvasApp/DesignSpace/Workspace/Workspace.js

@@ -418,8 +418,8 @@ function newWorkspace() {
     function replaceWorkspaceByLoadingOne(name) {
 
         let webCommand
-        if (name.indexOf('Plugin -> ') >= 0) {
-            name = name.replace('Plugin -> ', '')
+        if (name.indexOf('Plugin \u2192 ') >= 0) {
+            name = name.replace('Plugin \u2192 ', '')
             webCommand = 'LoadPluginWorkspace'
         } else {
             webCommand = 'LoadWorkspace'

CanvasApp/Utilities/NodeChildren.js

@@ -17,6 +17,7 @@ function isMissingChildren(startingNode, checkNode, checkReferenceParent) {
             switch (property.type) {
                 case 'node': {
                     let child = startingNode[property.name]
+                    if (child === undefined) { continue }
                     if (checkReferenceParent !== true) {
                         if (child.id === checkNode.id) {
                             return false