If you "upload" role from files then all sorts of things can go wrong.
Probably they have some foreign "original" language from another project which this system does not have in it's language libraries.
Template roles and taking excel files with from one project to the next is the domain of "fluffy consuting".
You must maintain Su24 and then work out what is really used and really needed and then design the single roles at job description level locally in PFCG by building them.
About 30 to 50 roles does the trick (x the replication for orgsets but avoid derived roles) and a view special functions. Then you are done on 2 months and can go live in the 3rd month and have a "success story" to tell.
SU24 and merge in expert mode! Not PFCG upload file exchange!
Cheers,
Juius