When I play hammer-ons and pull-offs (by holding the corresponding keyswitch and playing a pair of legato notes, the first overlapping the second, within 2 semi-tones range - I'm 100% sure there is no other MIDI data routed to MODO BASS), they are very often (around half of the time, I would estimate) both played about 1 semi-tone too low.
This issue seems to happen with all bass models EXCEPT THE 2 UPRIGHT MODELS, regardless of any settings, both for the plug-in in every format/host I have tried (Ableton Live, Bitwig, REAPER) and standalone app. That seems to be a clue which points to a bug in the PM model, imho.