Not able to save Rich Content Editor changes after copy/paste from Word/Website/..DescriptionWe have seen that in some cases, when copying text/content from other sources like Word/WebPages/... and pasting it it to the Rich Content Editor, the text/content that's been copied contains partial CSS that is considered invalid and breaks the Rich Content Editor. Most of the times the issue manifests right after copying, and some others when reopening the content to modify it.Steps to Reproduce Open a Rich Content record using Content Publishing --> Content LibraryAdd a Text section if there is not one alreadyCopy text with multiple styles from a Word document or a WebsiteGo back to the Rich Content Editor, select the Text section and paste the TextAttempt to save the modificationsIn some cases at this point the Save doesn't work and some errors in the Console are foundGet back to Content Publishing --> Content LibraryEdit the same content record using the editor.Attempt to modify and save the record and notice this will not save. The console might have also show errors from the moment the Editor was opened.Notice the invalid elements cannot be removed when using the editor.WorkaroundTo avoid formatting issues we recommend to copy plain text and use the following Paste command to strip out the formatting when pasting in Rich Content Editor: Option + Cmd + Shift + V for MacCtrl + Shift + V for WindowsRelated Problem: PRB1685711