I have not seen any option to send a DM. Anyway, and i can’t add a link here…
If you go to github to:
github.com/JavierMoncayo/auth0-issue
I have used the same implementation as we use when I noticed this behaviour. The repo contains the default app created by svelte with the Auth0 client from the github repo 2.2.0.
When I run this new app, on the same browser that fails using our main app, the auth0 client sends the same dummy user to the endpoint for auth showin the same error, if I run both apps on a browser that has never seen the issue, then it works as expected.
How to replicate it?
Use loginwith Popup button, and try to sign-in. That will probably fail (that is what I was trying to debug originally), after that first fail, when you try to re-open the popup, you always see the error mentioned before.
Does this help?