I have two 3D monitors and the LGP connected to my computer.
--- Holoplay script target set to display 1:
Game view: Display 1 no image in editor, Display 2 does have an image.
Build shows black screen on regular main monitor. Holoquarium does the same thing.
Shows error in Unity editor on play: [Holoplay] can't match. the first cal's unity index is1
In Holoplay.cs:
if (targetDisplay != CalibrationManager.GetCalibration(i).unityIndex) -> targetDisplay is 0 while unityIndex is 1
--- Holoplay script target set to display 2:
Game view: Display 1 has image
Build has the same behaviour as with target set to display 1
No error in the Unity editor
Surprisingly the previous Holoplay version I was using, 1.21 (!) works fine with the Portrait