Unsure why but there is one probe that has to be manually rebaked. If possible we should look into how is this one special or simply replace the probe with a new one so it would bake as all the rest.

1) Open new HDRP template. I used 2021.2.0a18, but a17 should wrok too
2) In lighting tab clear lighting
3) Bake lighting

Expected: All probes are baked properly
Actual result: The probe in room3, called ReflectionProbe Room 3 Ramp captures sky lighting. A workaround is to simply select the probe and bake using inspector. We might want to delete this one and create a new in its place, if unsure whats causing this behavior.