When I change some camera views the auto- pilot will disengage. This happens with different payware aircraft .It's a different camera not always the same camera on different planes.

Must be a share key assignment that is disconnecting the autopilot.

First I've heard of that.  I use EZCA (EZdok) with PMDG 737NGX, MD-11, RealAir Duke, and Majestic Dash 8.  No conflicts.