I`m facing the same problem with RageNativeUI related plugins crashing with System.Diagnostics.ProcessManager.OpenThread(Int32 threadId, Int32 access) error. Did you identify, which program could cause this access error? Did you disable any specific program before reseting your pc? Simple reboot does not solve it in my case.
Awesome callout pack, but what is more important is a huge improvment you brought to the game with this custom dialog system, i`ll definetely try to use your libraries in my own plugins. Btw, it would be great if you could create a couple of wiki topics with the documentation and some usage instructions, best wishes