Light probe information being erased when publishing

I run frequent movie nights on VRChat where I build custom worlds based on the movie. Recently, when going through the publishing steps, the information from light probes seems to be lost. In Unity, the probes properly show their lighting - I hit publish (or play) - and all the probes turn black.

I’m using the USharp video player, set to static (ignoring reflection probes).

This only happens when baking static lighting - when only using precomputed GI, the light probes are not erased.

Anyone have any idea what might be happening?