Hi,
thanks for the reporting!
Yes, there are some syntax errors, but they shouldn't be related to this behavior.
I think it's a side effect of this change:
Fix: The loading state reported by the loadstate variable was wrong when using cubestrip or single-resolution sphere panos.
That might interferer with the loading state for video-panos and so the blending starts in the wrong moment (before the video is actually ready).
I will check that in detail and fix it for the next release.
Best regards,
Klaus