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For some reason users are getting the following popup/error when toggling 'Quick Edit' on a list or library.

This site says...

Assertion Failed: Edit manager is still in Editing state, but focus is on the grid's input element!

Break into debugger?

Popup Error

No errors are showing in Chrome's developer tools console. However it is showing the following messages... (I'm not sure if they are related.)

[Violation] Added synchronous DOM mutation listener to a 'DOMSubtreeModified' event. Consider using MutationObserver to make the page more responsive.

[Violation] 'click' handler took 34811ms

[Violation] Forced reflow while executing JavaScript took 35ms
[Violation] Forced reflow while executing JavaScript took 38ms

We are running SharePoint 2013

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  • I noticed the same thing on a 2016 on-prem install the day before... Which SharePoint version are you on? – Nils May 28 at 6:28
  • I can reproduce the problem in 2016, after a taxonomy-column was added to the list. It does not occur in 2013 or online, though. – Nils May 28 at 7:07
  • I've added the answer to your question as an edit. Thanks for your interest :) – Laura West Jun 3 at 1:43

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