I sympathise with you. I have found that RealTrack and Stylemaker bass lines regularly play the wrong notes.
I am trying to program Stylemaker bass lines and just found some basic musical errors.

Simple mistakes I can appreciate but Stylemaker can not even play a correct major scale in all keys !

Stylemaker will not play an A to B progression as an Up 2nd OR Down 7th interval yet will play an A to C progression as an up 2nd interval.

Just these 2 faults make me question the validity of ALL Stylemaker intervals/progressions and masks.

Realtracks seem to have a lot of similar problems.
Maybe I should just record live double bass lines ?

I have sent PG Music the relevant files.

Erol