Hi Chris! The exception seems to be a Construct 3 bug, but I can't reproduce it on my end with the latest version. Could you please reach out to my discord server and share a minimum project so I can test it?
What version of construct are you using? and What version of the plugin are you using?
Hi Chris! C3 seems to be triggering the LoadFromJSON method in weird circumstances that do not involve loading a saved game. I was able to reproduce the error and post a fix, please download the latest version 1.0.0.5 for SDK v2.