Regarding Observation 4824942 …
Why are some observations that have a waterfall marked as fail?
It is marked automatically as failed because the audio file duration is 6m 30s which is more than 1 minute different from the scheduled one which is 11m 09s.
Short audio is usually a result of lost samples, due to CPU not being able to handle the sample rate.
The lack of observation metadata also makes me wonder what SatNOGS version you are running. Usually we can see information about sample rate, sdr type, etc in the metadata which greatly assists with debugging.