TT strikes again - update deleted all tax files

I e-filed a few tax returns prior to the Feb 12 IRS start date.  I updated the program this morning on Feb 13 and now all my tax files are gone.  They;re not in the recycle bin nor located any place on any of the hard drives.  All  of my previous years are in tact, but all 2020 tax return files and saved PDFs have been wiped.  Is there any way to confirm if my e-filing will take place as expected?  TT states that it's the same as dropping in a mail box.  But, with all files now missing, I am wondering if the e-file will still go through.  In addition, is is safe to assume that there's no way to recover any of the missing files since they do not reside on my computer anywhere?  Thanks much for this headache TT.  You may have lost another customer.  It looks like this has happened to many others in previous years - still with no fix to this horrible bug??