Quite frequently I post a reply and find an Edit Conflict alert, but then discover that my post was published and that the edit conflict notification is actually with myself. It's as if I've double-clicked 'Publish', and my second (blank) edit is trying to overwrite my original response.
I find this quite annoying, though I do generally like the interface as I edit at a very active Forum (the English Wikipedia Teahouse). I am using Winndows 10 Home 64 bit, on Chrome browser Version 86.0.4240.198
My one suggested improvement is to provide a 'Click to copy contents' button so I can quickly select my reply text and ensure I don't completely lose it if things don't work.