I was able to duplicate your issues just after reading your recent post. A fix has been created and will be available within the next version.
https://www.ubbcentral.com/changelog-snapshots.php#20201106The fix required transposing some lines of code that have existed in that sequence for at least a decade. The fix also required some additional correction of sessions for guest users.
Tested. The results are now as you would expect them to be.
