Since upgrading to SkyView 4.0, the SkyView system can’t see my pitch servo. 4.0 added support for the secondary bus, and a number of people have seen errors after upgrading due to wiring errors. Although I wasn’t seeing any alerts about wiring errors, members of the Dynon forums suggested I double check the wiring anyway. I spent a couple of hours tonight checking continuity between all the wires and verifying the servos had a good power and ground connection. All my wiring looks good, so I’m not sure what the problem is yet.