I have a group Calendar app installed from the productivity Apps and it's now showing this error on page load after the weekend update:
An unexpected internal application error has occurred.
Doing a right click/ inspect I can see the next problem:
DevTools failed to load SourceMap: Could not load content for https://static.oracle.com/cdn/apex/20.2.0.00.20/libraries/jquery-fullcalendar/3.10.2/lib/moment.min.js.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE