Getting lots of Run Time errors trying to use dome simulators

The ASCOM dome simulators do not seem to work (tried both). I get run time errors when starting a sequence? Are the simulators of limited value? Seems like I should drive out to the observatory and try it with a live system.

Not entirely sure. We will often use “Dome Simulator .NET” for testing and get no issue with this.

Just checked the dome simulators and they seem fine.

If you can post your logs (accessible via the help menu), it would be helpful.