Guessing by the timestamps of your posts you may not have seen an update daniel posted at 1900 hrs.
from PBaldys posted link https://www.devhut.net/access-lock-file-issues/
Officially From Microsoft
We have an update as of 2021-12-16 at 19:00, a fix has started to roll out!
New builds with the fix have started rolling out for some channels:Current Channel: 16.13801.21092
Current Channel (Preview): 16.0.14729.20170
Semi-Annual Channel (Preview): 16.0.14326.20272
Semi-Annual Channel: 16.0.13801.21092
Semi-Annual Channel (Extended): 16.0.13127.21846
Shane Groff - Access Dev Team
So update your systems and things should be back to normal.
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