@josejp2424
Thanks for the info, it's appreciated. Will have to read up on how to implement changes 
The initial error on FP95 is due to an older version of GLibc being used.

Which is why I had to recompile it for FP95 and replace it within your application to get it to work.
tmux-3.4 (for Fossapup64-95) .......... just for testing!!
This build I used to overwrite your existing files.
If you try to use the build in the PPM it fails 


Running Tmux by itself (my build) shows this 

Guess it's not an issue with your config file ....... instead it is with Fossapup64-95.
BTW It works perfectly on JammyPup64 