Thanks for this, I suspect has something to do with how the Myo is being instantiated, which is why it crashes when you hit play or compile (it would re-make the myo component attached to your blueprint in preview). Still trying to find the time to debug issue. Just letting you both know its still on my radar. If you’re good with C++ have a look at https://github.com/getnamo/myo-ue4/blob/master/Plugins/MyoPlugin/Source/MyoPlugin/Private/FMyoPlugin.cpp to see if I’m doing anything funky that would cause bug.