I've been running ConformU 3.1.0.31181 against OmniSim 0.4.0-alpha01 telescope device in both COM mode and Alpaca mode to support my testing and work on Green Swamp Server.
In COM mode ConformU reports:
15:51:06.983 AxisRate:Primary ISSUE Unable to get or unable to use an AxisRates object - Exception: System.Runtime.InteropServices.COMException (0x8004040B): Command: 'AXISRATES' is not recognised by the Scope Simulator .NET driver. ASSEMBLYVERSIONNUMBER SLEWTOHA
All other ConformU tests pass OK. The issue does not occur using the Alpaca interface to OmniSim. Probably something to put on the list for the next release.