I have user error too where somehow I'm accidentally pressing the thumb wheel and turning it moving that shooting mode to another setting which I do not want. I see there is a lock feature that I have never tried and will see if it can apply to the thumb wheel-mode wise.
Wonder if you can lock that new ISO wheel so no chance of switching settings? I now remember Leica Miami video mentioning one can lock it (or maybe another dial) since it is vulnerable out to the left side of the body and can easily be rotated while taking camera in and out of bags or any other way.
