Try re-installing the latest update 9.1.11 and see if that solves the errors?
I didn't have to add TX5T to my list of valid values. Once I logged TX5T, it came up as FO-A.
My list of valid values has the following:
FO-A FO0FI,FO0USC,FO/UT6UD_,TX5RV_,TX6G_
Vin