yes, but when I opened my scope this morning, it was ok as you describe how it should work.
I played with it a little more and the problem is still there, consistency is about 90%, I guess.
Basically all I do is I try to hide channel b, c, and d, then I press the “o” button. It says the settings were saved.
I turn it off, and then turn it on again and still channels b-d are still there.