Troubles opening old beta files with current 28.1 update

[Tolkien 1]

Is anyone else experiencing issues when trying to open old beta files on the current 28.1 update? The only way that I've found for them to open is by launching illustrator> open> searching for file. Other attempts to open such as double-clicking on the file or right-click open with do not seem to work. Illustrator will launch, but the file won't open. 

[Monika Gause]

I have seen reports about it and also there is a Uservoice report: https://illustrator.uservoice.com/forums/333657-illustrator-desktop-feature-requests/suggestions/461...