I don’t know if it helps to learn how common the double trigger issue is, but I did experience it on two of three units I had in my hands and returned before eventually giving up.
On one of them it was really annoying and on the other it was a bit annoying, both while ‘playing’ and programming. The inconsistency in responsiveness made it unnecessary hard to understand the button combos and effects. Also I was afraid it would only increase over time as it seems to me to be a mechanical issue of the buttons.
But I have to admit that I found too complicated anyway to memorize everything without having to look things up in the unsearchable web based manual.
I still love the inspiring physical design but cannot understand how the do not care of usability and quality aspects of industrial design. Their ‘modular’ series seems to have similar issues.