FixedColumns don't line up with the rest of the table after update to Chrome 91.0.4472.77

Link to test case: http://dt-test.analytical360.com/
Debugger code (debug.datatables.net):
Error messages shown: None
Description of problem: When Chrome updated to 91.0.4472.77 the other day, all of a sudden, our fixed columns were no longer aligned vertically with the rest of the table, especially at the bottom. We're using FixedColumns, and Scroller on our table for virtual scrolling, and the problem is worse at the bottom of the table. click on the test case, and scroll to the bottom to see the issue.