I wasn’t alerted about this until quite a bit later, so there was no way to go back. It’s possible these errors are happening when an imported email address already exists in the system—I can test that. All the users I expected to have created were created.
But what I can’t figure out is if there’s any connection between the information in this screenshot and anything I could look up in Discourse. Are email_tokens something that can be linked back to any other information?
Sounds like I’ll just keep doing this in small batches and see if I can attach an error to one of these messages.