In the past 2 weeks I keep getting the below error in the web editor every few minutes... It seems to be intermitent, sometimes I can go hours editing witouth it, and then there are days when it shows up in the first 2 min of opening the editor...
I used to have version 2.0.732 on Chrome and now it has updated to 2.0.750 on Chrome, but the error hasn't dissapear....
I had the same problem - it would lock me out of my App completely. Then I would start over with a Backup and it would do the same thing everytime I would edit a Gallery, Save the App and then upon opening again I would get the Web Authoring kiss of death message again.
You might not have the same problem as my occurrence but mine was based upon a PowerApps issue that is suppose to be fix in the next release. I was told the Web Authoring - Abnormal Termination was triggered from the code "Gallery.AllItems". You may want to find a workaround for the Gallery.AllItems code and see if it works then.
It took me 45 days from the time I posted a Support Ticket to get the feedback that it was a PowerApps issue. Good luck...
Please take a check to see if you have the Gallery.AllItems get onvolved in your formula, if yes, then please consider replace it with the other workable expressions.
Community Support Team _ Michael Shao If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.