Hyperion Addon does not work for internal grabber

I want to setup hyperion with LibreElec 9 on my rpi3. I am using the hyperion addon from libreelec repo. My configuration works for the external grabber only. But I want to be able to use it for local kodi, too. Any help would be appreciated.

Ok I found a solution. Seems like the HDMI splitter before the external grabber will always send a signal. Resulting in permanent blue. And since the external has a higher priority, I will never see the internal grabber.
Solution was to give the internal grabber the higher prio, since it only sends a signal in kodi during playback. Hope this helps someone.