UPDATE: figured out a repro.
The gist is that modulating LFO->Pitch LFO->Cutoff with Press doesn’t always work when Paraphonic mode is enabled. In unison modes it works exactly as expected.
Start with an init and use Assign 1 to modulate LFO->Cutoff.
Set the Press->Assign 1 modulation value to 3.
Set the filter cutoff to a value that allows you to hear the modulation.
Try out the patch (and activate aftertouch) in either Unison mode.
Enable paraphonic mode and try again. In paraphonic mode, the modulation does not work consistently.
I’ve tried various grounded/ungrounded power supplies and I’m on FW 4.0.1.1376
I could export the repro patch if that might help.