To Reproduce:
1. Build & Run.
2. Wait for it to crash.

Details:
- The plugin is inside the Plugins/Android/src folder. To build you can use the build_plugin.sh (replace the path to the ndk).
- The managed thread is created with a call from managed code. Then inside the native thread a managed delegate function is called.

The code looks OK, but maybe there is something about threading between native and managed that I don't know.