Using a P3 XL, and the latest Q beta - I just see a black screen when opening the app in daydream mode. Tried a couple of other apps to check if it was all apps on the beta, and it just seems to be Skybox that has the issue.
Thanks for the bug report.
We are actively mitigating SKYBOX to Android Q Beta now and the new build would be released as soon as possible.
Hopefully it would solve this issue.
Please be patient with us.
We released a new version on Daydream yesterday and this version should fix the black screen on Android Q.
Please try it and let us know if it works.