Assigning device to a group via API results in 404 error

Hello all. I’m using Mender Professional and had a question regarding using the API (specifically this one to add an authorized device to a specific group. I’ve seen a handful of incidents (relatively rare) in our device provisioning flow that results in a 404 return code from this API when trying to add a new device that has just been authorized. Under what circumstances could this return a 404 other than the obvious scenario that the device doesn’t exist? If our flow preauthorizes and authorizes a new device and then immediately assigns it to a group, is it possible that the new device isn’t quite finished being provisioned on the backend leading to a 404 error when trying to assign it to a group?

Looks like there were data sync issues on June 16 which is when these errors happened for me. I’m assuming this is likely the cause.