I just wanted to check what my settings are, but under GLOBALS the items 17 Velocity Curve and 18 Pressure Curve do not appear.
It jumps from setting 16 to 19.
Is there a trick?

Ok. Found it: I have the REV2 Desktop

Thank you very much for your detailed answer and your tests. First of all, I'm glad that my REV2 doesn't have a fault.
I will report this to Sequential.

Have a nice weekend
Ralf

Hello,

thanks a lot for your reply.

The problem is the same when I turn the effects of.
It's a new REV2 16 with os1.2.1

One example are the factory presets F1 P1 LosVangelis2041 switched to F1 P2 All That Glitter.
Can you try this with your REV2?

I overwrote all my Factory banks with custom patches, so I don't have those two specific ones.   But I just did a bit more testing with some of my single layer patches without effects.  Think I figured out what causes trails on some...  it's sending Note Off upon changing patches... but if the amp is still open on voices, the synth has to close down the amps... seems that maybe its using whatever the quicker release time between the two patches in question to close down the amps.   ie:  if you have a patch with minimal/no release time, it immediately shuts down the amp on patch change... but if you've got two patches with longer release times, the release trails will ring out.   

I could see this being beneficial in some scenarios with similar patch designs where you want a more subtle changeover... ie: switching between two Pad or Brass sounds...   but for patches that are significantly different with ADR timings, might not be ideal.   The optimal setup, IMO, would be having both "seamless changeover" and "instant silence" as an option in globals menu, where the seamless option would keep the current sound/voices playing with their sound design (even possibly with sustain pedal held), and the "instant silence" would force release timings to 0 and turn off the note right before patch change.   (the true seamless patch switchovers is a pretty big architecture ask though, as it requires keeping multiple programs in memory and keeping voices allocated until they are truly off)   Think Seq is done with firmware updates on Rev 2 though... but maybe an option in future synths. 

Press Arp button-top right > Seq Params(2nd button below oled display) >3rd encoder = seq restart 0n, off.

Hey thanks so much, didn't seem to be in the manual.
Good to remember to check the display screen for each function for extra settings!

The manual says:

To transpose a sequence up or down during playback:
1. Press the play button to hear the sequence.
2. Press a note on the keyboard above or below middle C. The sequence is
transposed to that key. (Middle C plays the sequence as recorded.) For
greater range, use the Transpose Up or Transpose Down buttons.
3. During playback, if you want to restart a sequence from step 1, press
the reset button.

However, the sequence restarts from step one when pressing a key. I would think there should be a setting to turn this on or off but I can't find such a setting?