This began on 2020 Advanced, now also on 2020.1 Standard.

During file conversion, the conversion fails on one or more files.

For the Adv, if I ran it in Std mode as Admin, I was able to proceed.

With the Std, I copied over the file folder from the previous version and tried again and it went though, although it makes me feel uneasy.

On the Std, I am now trying to convert a TST company, and it is doing the same thing.  It stops at JC_JobTransactionDetail.M4T file.  It errors out and closes like normal, but if I try to rename the file in question, I can't.  Using Computer Management, the file does not show as being in use.

After attempting 2 restarts, the current file levels now show as 4.50 (even though the files were at 6.00 in the beginning) and now I get an error that JC0 is missing.

On each company in this instance, the same file was causing the error.