Why UE-66417 is marked as ‘Won’t fix?’ (Unreal Engine Issues and Bug Tracker (UE-66417))
Does UE4.21 and onward require different controller setup to work properly? If yes, then which changes compared to UE4.20 are needed?
Maybe Epic thinks google needs to fix it - I worked around it by just using a normal stock standard Unreal motion controller component and attaching the daydream mesh to it.
FYI: You can’t actually release any daydream app made with UE4.20 - 4.22 due to this bug: