API_TOKEN_DB_LIMIT_EXCEEDED error (not quite as widespread as last time)

HI there I’m seeing API_TOKEN_DB_LIMIT_EXCEEDED again, but localised to only a couple of accounts. Last time this happened, I had to modify my boards query to not use quite so many fields. The failure is on a boards query again, but I can’t do the same trick. It’s difficult for me to diagnose why it’s happening, can someone take a look under the hood and tell me what additional optimisations might be required?