Hi,
After last security update on our server - KB5002180. We are having lots of issues on our SharePoint 2019 on Premise. And since it is security update I can't uninstall it.
From server side all services are working, but from user side there are serious problems:
First of all we got lots of browser errors e.g.:
In modern view of list there is lots of strange issues: buttons/ column headers are not clickable, top list ribbon and top navigation bar disappears on second visit on list view within the same browser card, site content view is almost blank (only dividing lines are visible and "Contents Subsites") .
Our custom App-extension is not visible.