Sorry for the very, very late response. Been going through back and forth trying to arrange a good time to fully remove all the Redists... but, sadly, it did not make a difference. Still the same error, but at least the error screen doesn't disappear immediately (yay?)

If anyone has any further suggestions I'm all ears, but at this point I'm going to pin it on Windows or the previous Quickbooks causing issues and just reload the computer. I'll mark the Redist as a solution as that seems to be helping others.