MDM command response with unknown command UUID returns 500

MDM command response with unknown command UUID returns 500: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). After migrating some hosts into Fleet's MDM (nanomdm), I'm seeing 500s on the MDM checkin endpoint when those hosts POST a command response.