I am creating sitemaps exclusively through the Main UI (Settings → Pages). After a period of normal use, the sitemap becomes un-editable. When I try to add a new item or make a change and click “Save”, the action does not complete, and the changes are lost. No error message is displayed on the screen.
This issue is recurring. It first happened with my original sitemap. I created a completely new, second sitemap, which worked correctly for a while but has now developed the exact same problem, becoming un-savable.
Yes I kept sitemap page open, I tried cleaning the history of browser also restarted the openhab server. Even I had tried with mobile app Main UI same problem..
I can’t answer the workaround part, but it has been backported - sadly, there has been no release since the backport was made. The fix should be in 5.0.2 when that arrives.