This documentation is still very early and not complete nor well written.
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Discharge phase

We faced a problem during the discharge phase.
The battery discharged at 15A from 41.279999V to 32.040001V for 29mn until it gets too hot and triggers cellsOvertempInDischarge. Some cells were over 75°C.
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One reason why COTD was triggered is 1 screw was missing at the back of the pack, after a diagnosis we see Cell 6 with inner a 0.2V delta between their 3 inner cells.
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We indeed see Cell 5 (Cell 6 of the pack) getting unbalanced a lot because of the bad contact with the pack.

After transition to Error state, battery says the FETS are open but we still see current drained from the battery:
All Fets are 0, but Battery current is 14.82A.
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We then see within 20s the MOS temperature going from 64.85°C to 107.85°C.
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Detailed logs