Why is tuba listed in the instrument list as tuba (unspecified)??

I never used to have this issue when writing brass ensemble arrangements until the last couple of releases-
Now whenever I select tuba under any of the brass options, and ONLY WANT standard tuba, letting the player (and I am a tuba player!) play the concert, bass clef tuba parts on whatever key instrument he wants, the only option besides something like Bb Contrabass tuba (which should be BBb BTW) that comes up for the standard tuba is "tuba (unspecified)". I can remove "unspecified" from the score, but when I generate the part, it just comes back that way and is also listed that way in the mixer. PLEASE remove the parenthetical "unspecified" from this instrument. One can always specify if one wants to- the default should not include this word. For those of us who write for brass quintet/ensemble it is just a waste of time to deal with this. Thanks.