I have had the same issue and i have been able to close the settings to include getting it out of the recents tray. After that my search doesn't make me think i'm shrooming
report error to Samsung Members after you see the issue again. Tho it's a known issue, they need the data to confirm it can be fixed using the fix found during beta.
😕 sorta bummed the new A12/UI4.0 is turning out to be quite a big let down.