I successfully tested  random actors and configurations I could test fast

NDI and it works as expected both in input and output (tested with jdi tools)

GLSL (on shader toy)

Video input camera and various effects 

Sound frequency bands

Sound level watcher

All mouse and keyboard group

Jump and jump ++

The only problem I found is that switching back from scene 2 to scene 1 with the scene blue buttons is slow although there are no media to load in the first scene. 3 full seconds average duration for the transition between scene 2 towards 1