detect if the skeleton is streaming and do something

[BrunoMartelli]

hi In Unreal 4.27 I want to show/hide a scene object if the Optitrack skeleton is streaming or not.
I can see in the Optitrack skeleton component that 'Hide on Invalid Definition' is used to hide the character - if the associated skeleton is not being streamed, but how can I test if it is hidden to send this info out to another object in the scene using blueprint?

thnx