Ok, tested – and spotted another, likely related, bug.
In addition to the key priority issue – when using the regular, polyphonic mode w/ sustain pedal, last note priority is not working; after all six notes are playing and the seventh, eight etc. is pressed, the “oldest” note is kept, while the “newest” note is cut off. It should be the other way around -and is- when simply using the full+ polyphony -without- the sustain pedal (=oldest note is then sacrificed, just as it should).
Also, this issue only occurs when ‘tapping’ in the notes (while using sustain pedal) – but if the notes are ‘held’ / kept pressed down (while still using sustain pedal) the newest notes are kept, as they should.
—> so I downgraded to FW 1.6 and both of the above mentioned issues (unison/monophonic key priority and polyphonic note priority w/ sustain pedal) are now working just as they should —> there seems to be a bug in FW 2.0 and FW 2.2.