Inline editor freezes on certain issuetypes

[janez_m]

Hi!

I couldn't find anything like this happening to others and I've tried a bunch of search words.

For issuetype Bug we are experiencing a strange issue when you want to edit Summary of Description with the inline editor (not with clicking the edit button - that one works) and then click Save or anywhere out of field, the whole field freezes - you cannot select text anymore - the text gets grey - but the controls on top of Description field are still interactive. If you reload the page you get a warning "Changes that you made may not be saved." but after reload you can see them on both fields - saved.

This does not happen with other issuetypes, so it must be some funky configuration there, but I can't seem to find it.

Tested with many different browsers, checked the workflow, possible behaviours, field conf. schemes, but there is nothing. 

I've included screenshots of before saving changes and after saving changes for both fields:

Summary field:

Description field:

The controls for Summary when editing turn from a tick to a spinning circle. While the save controls on Description field disappear (Visual, Text; Save, Cancel), the text becomes greyer and uninteractive (cannot select it anymore).

There are no errors in server logs, but there are some in developer tools in a browser, but after googling all of them I couldn't find anything useful.