Edit: Doesn't work on mine. It seems that after each unique buy or sell, the wallet fails to update correctly after the event. I'm guessing that's why my debug log is lined with actions, but no corresponding trade unless I manually reset the wallet using this "All-in" hack. As a result, my bot only ever carries out a single action (it seems).
Indeed, the "All in" trick seems to work only for the next trade.
Been observing it more, it just bought and the "All in" amount didn't get updated with the deducted fee. I believe the problem lays there, it buys whatever amount of coins but the fee is not deducted from this amount after the buy operation so when later trying to sell it errors since it's trying to sell more coins than what you have.