Mono 3 and 4 are supposed to reset filter and amp envelopes on each note I believe? But they sound just like Mono 1 and 2. Something I'm missing?

Key modes don't work as expected?
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are the envelopes not being retriggered?
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No as I said it's like Mono 1 and 2, it's legato.
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From the manual:
Mono 1 Monophonic, multi-trigger, full portamento Mono 2 Monophonic, multi-trigger, legato portamento Mono 3 Monophonic, single-trigger, full portamento Mono 4 Monophonic, single-trigger, legato portamento According to the above table, Modes 3 & 4 do not reset the envelopes.