Every time this thread pops up I need to check whether there are new drivers including this UI. Wish I had it in every RC-light.
I took a break from the hobby and revisited this only now. Indeed on a Attiny 25 everything works just fine. It’s on the 85 that I run into the issues described above.
Is there some kind of “compatibility mode” on the 85 or something? The MCUs are out of stock everywhere of course, I have a bunch of 85s left though…