A family of Microsoft relational database management systems designed for ease of use.
I am trying Version 12/10/2019 Version 1911 (Build 12228.20364).
So far, we've tried importing everything into a new database, compacting and repairing, running debug/compile and none of those have stopped the crashes. I will see if the above build fixes it. We did not go back further to 1910, because I think that one had another bug that crippled update queries of single tables with criteria in them, which broke some other critical processes for a little while.
I believe 1911 fixed this issue which 1910 (or the one before that) had caused for us: https://support.office.com/en-us/article/access-error-query-is-corrupt-fad205a5-9fd4-49f1-be83-f21636caedec