If context is current to some other thread, or if either draw or read are bound to contexts in another thread, an EGL_BAD_ACCESS error is generated.
https://www.khronos.org/registry/EGL/sdk/docs/man/html/eglMakeCurrent.xhtml

This affects hybrid mode because the raster and the platform thread need to be merged. We might need to make a separate EGL context for the platform thread.