I have a weird issue that has happened a few times now. In the PMDG DC6 and Justflight Arrow (could be happening in more but these are two that I have flown and given up with most recently).
The artificial horizon appears to be banked over to one extreme and indicate a nose down attitude. I do not understand for the life of me why this has happened in two separate aircraft. I have random failures disabled so that can be ruled out.
Any other suggestions?