I just figured out what caused this issue:
You used the old 5.8 version (the one from February 2020) and if I load the RAW+pp3 with that version all is OK. The same RAW+pp3 in one of the later version is not OK.
Not at all sure why there is such a discrepancy in the (camera) White Balance settings comapred to the newer versions, might be a bug somewhere down the road that got fixed.
@josemar127 : If you want a newer/better RawTherapee version have a look here: Direct download links to the latest RawTherapee development version.
OK, no more off-topic stuff and back to the nice Fuji lens 