Charging sessions truncated or not logged

Charging sessions are not being logged properly- either they do not show up at all, or are truncated. Example: I had a full overnight charging session a few days ago (August 7th) which ran for more than eight hours, consumed more than 50 kWh in total and charged the vehicle from 23% to 100%. However ABRP shows the session as having charged to only 24% and only running for about 6 minutes.

This has been happening for the past several months, since I have been trying to track charging.