Oh, and I have forgotten...
I don't remember if/when I have posted for this old bug, but perhaps is it the good timing (but the wrong place ?).
When the number of inputs / ouputs is more than 16, and if the display selector of the outputs is set to a value superior to 16, so the inputs levels below 16 are modified and cannot be changed to their good value until we revert the output range to max 16.
It can be a problem when editing.
Not so good :
It seems to be 100% reproducible.