Here is additional background from Arne who has been monitoring the situation

"The two problems that AP2 has are the "telescope can home" issue with the ASCOM driver, and a guider communication issue between MaximDL and ACP. The "can home" issue is solved by disconnecting the telescope from everything and redoing telescope setup in ACP, which gets you to the ASCOM chooser menu where you can click the appropriate box. Then reconnecting all of the software. This happens during Startup, as we home the mount, and often results in an "operator intervention" preventing any operation. The guider issue shows up when starting the first science field, where a 10-second guider image is taken. You either have ACP waiting for MDL to say the guider image is complete, or if that succeeds, you sometimes get a hang on the guider settle phase. The only way I've found to solve that is to disconnect MDL from everything and restart it."

From Arne 4/18/2024

David