No, not the GX8, too

My GX7 had problems with the thumb wheel 2 years ago. The whole top of the body was replaced under warranty. Then a year later the problem returned. I personally know a guy who had the same problem, and I read here on this forum, that this is a common weak point of the cheaper Panasonic bodies.

OK, so I got a GX8, which had a rather stiff exposure correction wheel. After about 15 months there is the same trouble. You correct -1/3 and get a random correction like -1 2/3 or +2/3 or non at all.

Great fun.
In my experience it is necessary to correct exposure a lot to avoid burned out highlights.

AFAIK this problem in my cameras started with more than 30k shutter actuations.

Peter

My GX1 was repaired under warranty for a problem with the rear thumb wheel (it had stopped working altogether).

Mark

Well, I had the gx7, the gx80 and never had a problem. However, my recent Gx9 is starting to suffer the same issue. It's still under warranty so I'll probably send it in for repair, but I really hope the issue won't reappear after a few months.

I don't feel that the dual-purpose function of the wheel is good design given the components. If instead of a "push-to-access" the wheel was split into 2 wheels of the same diameter so you accessed top or bottom in the same location, it might be more robust.

Mine hasn't started misbehaving but I suspect it will given enough time.

My conclusion is, that I won't buy any Panasonic bodies used, if I am not certain, I can return them.
In any case, twice sellers have been honest enough to mention problems with the thumb wheel.

Peter