Hello pix,
it's not a bug, it's a feature.
The engine supports several different sync/trigger modes for the Arp/Lfo. You can select them in SETUP. The advantage of having different trigger modes is that you can sync the Arp/Gate/Step/Lfos with each other. The soft trigger mode is an innovative mode, which makes it more easy to play the arpeggiator or trancegates in life performances. They don't get 'out-of-the beat'.
Arp/Lfo hard trig:
If TRIG is on every voice will retrigger. The LFOs behave like polyphonic LFOs.
If TRIG is off the LFOs will retrigger with PHASE as soon as the first key is pressed.
Arp/Lfo free:
A free running and monophonic LFO
Arp soft Lfo hard:
Soft triggering Arp (see below) + hard triggering Arp
Arp/Lfo soft trig (the default mode when you init a patch):
If TRIG is on every voice will retrigger. The LFOs behave like polyphonic LFOs.
If TRIG is off the LFO will only retrigger when no key has been pressed during the last second. Othewise they will behave like freerunning LFOs.
Arp/Lfo classic trig:
If TRIG is on every voice will retrigger. The LFOs behave like polyphonic LFOs.
If TRIG is off you get a free running LFO