There is no config file, I would assume because I have not saved a configuration, so figure it is using a default. The right-click drop down menu does show Save Tag and that does work.
The .ini file contains:
Is there possibly something missing under [shortcuts] ?
This is intriguing since last time I worked on this project last winter all was working very well. I had not reinstalled the program since trying a new version then. Still running the same OS, and really haven't done any major system changes either.
And as I said earlier, an online keyboard test does indicate keystrokes for Ctrl and for S.
I think my next try will be to install MP3TAG on the machine that I actually use for my live music files and see what happens there.