@Tracy Teal I am not seeing an issue with anyone else's account (from the logs, several others have been able to login with email) and am not able to see anything odd about his account either. The authentication is handled by supabase and we dont have to do anything specific there to a flag or something similar.
Can you ask him to go to try these 2 things
1. First go to this link:
https://dashboard.nixtla.io/sign_out. Then try and login again using email.
2. If that does not work, another option is to rule out some browser settings by trying in another browser.
If neither work, I may have to get on a call with him to see what is happening.