I'm in the process of upgrading all of our automation tools for use with VX.2.1. Everything for DxDesigner appears to be working correctly, but PCB tools are not. I've narrowed the problem down the the MGCPCBEngines.dll being faulty. Also there is some problem with the MaskEngineAutomationController.dll in VX.2.1. Also, neither of these dll's appear in the list of registered COM objects, meaning that one cannot add them as references to a project. I found the dlls in the Mentor install tree and added them using the .NET Assembly Browser in my IDE, and I was then able to add them as references but they are still broken.
If anyone has successfully used either of these dlls from VX.2.1, please let me know how you did it and what are the versions, dates, and source locations of the dll files you used. Mentor guys if you could look into this and see if you can see what might have gone wrong, I would appreciate it very much.
I have opened SR 2976157693 for this issue on Supportnet.