It seems that your ${HOME}/.flair/flair.ini file has some old settings. Could you do the following:
- exit all flair that are currently open
- open in a text editor the ${HOME}/.flair/flair.ini
- delete the whole section [Data]
In case you have some customization there, then just delete all entries that are like
arg.### =
inp.### =
If you delete them then they will be overwritten by the default of flair
Another point is when you add a usrbin2dvh don’t override the Parameter for the default file but change the Name/Unit (last column on the detectors listbox) to the unit of the usrbin you are using