There are four toggleable destinations … int int/ext ext (except encoder has no ext only)
Encoder
Pad
Pressure
Mute
Mutes are a CC
pressure is aftertouch and is only possible in normal/chromatic playing
Pad is notes only
That only leaves encoder which seems to be a catchall for CC messages (except Mute)
so the only path to disabling the CC from performance Mode is via Encoder set to Int
There’s no way to disable Encoder without disabling the performance CC (in 1.50A) too
However, if you are setting the Output Ch to the Track Channel or Auto Channel, then the encoder CC is always on a different channel which you could filter with - default channel for Perf CC is Channel 15 which is a unique channel from all other defaults
I can’t attest to the behaviour of Encoder = Int prior to this, but it seems to make sense now, if it was previously sending Perf CC then there would have been no setting (besides a kill all) to filter that away - perhaps there’s a case for having a Performance CC = Int Int/Ext Ext option that is discrete from Encoder ? Who knows
But I can’t see anything massively inconsistent with expectation here - the term pressure seems to have added to the confusion, but that relates only to Aftertouch Messages (not performance Mode)