I've got the same problem with the left camera on my SIG. Personally, I think the mirror cameras are a pain and I never use them. It's easier - and safer - to glance in the mirros rather than look down at the camera monitor, Having a 40' coach for 20 years without them and driving and 18 wheeler for 15 while farming, I'm completely comfortable with my mirrors and the backup camera.
Monaco 2004 Signature 45' Castle IV Detroit 60
Towing 2015 Jeep Grand Cherokee diesel