All the camera windows and PIP views are fine. However, the rear camera image/video is not always properly mirrored except on the front camera LCD. I don't look at the LCD though, it is too small. I want to look at the rear camera view on a bigger tablet or 10" monitor (connected to the av output). That's where the problem is. If I mount a tablet or small monitor on the dash, the image/video is not mirrored like it should be (like the car's regular rear view mirror). Changing the "rear camera mirror" setting works every time for the LCD but does not always work for the App and/or the av output. I've tried several android, iphone and tablets, Occasionally it does work but more often it does not. Also, I've never seen the rear camera recording mirrored irregardless of the "rear camera mirror" setting.
Edit: I know it's simple to find a program to mirror the recorded videos, but that shouldn't be necessary. It should be recorded the same way it's displayed.