I am still on 2310. I have tested your file and it seems to work ok. My file still has the same problems though. I will wait until I get the update and retest.I've just updated to version 2312 build 17031.20000 (Beta Channel) and the issues have now both been fixed.
I have checked with the Access team and the fix is now implemented in all builds from 17024.42128 or later
Restart Access for this to be implemented
Please can you check both your test form & mine in the attached & let me know the results