g0>  MR> The upgrade util is not working on my system. I figured out
 g0>  MR> that the underscore is causing problems when it is used in the
 g0>  MR> "Data File" field (filenames).

 g0> Can you give me a little context here?  What is failing and where with
 g0> underscores?

Ofcourse: The upgrade executable is failing:
Here is the exact location of the problematic field that cause the upgrade executable to 'hang':

-> mystic cfg -> Editors -> File Base Editor ->  -> Data File -> an entry like welcome_area

Hope this helps!

... No one knows what's next, but everybody does it.

--- Mystic BBS v1.12 A47 2021/12/24 (Linux/64)