Yes, I think that was it. Eventually it was reproducable, which was basically what I tried to make clear with my post.
I know well that there are power issues within eurorack systems which are often underestimated, that's the reason I have two cases with different PSU (linear and switched). And I appreciate the collective striving for a solution. (in 5U I experience capacity issues with all those vintage designs btw...)
But on the other hand it's often a kind of final argument that prevents going deeper on the ground. As in this case eventually the issue was pretty easy to reproduce and then fixed.
I tend to feel a bit lost when I seemingly am the only one experiencing those bugs while everyone else seems to be amazed by new features and I am like: yes, great - but it does not work here. I do not understand how this could be possible then and I am afraid my posts read a bit negative then but that's not what I feel about this stuff. I am just trying hard to get attention...
It's more that I really want to work with my monome stuff because it is great, visionary and beautiful but I do not dare to program some patterns, scales and presets f.i. as long as I see there are some serious bugs and there probably will be another update to fix it and all my stuff is lost. Would be different if it was just about new feature updates you could skip for now.
All this could be so great and I would love to have it stable in the sense of everything working as it should before new features are introduced that kick up a breeze in the firmware again and it takes months again to understand which new feature introduced it and get it all working. Without the teletype integration and pattern programming Ansible/Arc is just a quad LFO and offset generator, with all current features reliably working it can be so much more. Same with Earthsea.
So, thank you very much to all of you working on this and dedicating time, work and knowledge to it. I do appreciate it very much!