After deploying v6-beta to demo.redash.io we started seeing this error, which we haven't before:
https://sentry.io/share/issue/08f84c11d6d04474b642b2d1435f9fb8/

By guessing what might be the cause of the issue I commented out the following code:

Once I have the issue stopped happening. The reason I suspected this code was because we call create_app here for the second time during the initialization process of Celery.

I'm not sure why it causes it though or how to fix it (aside from removing this code). 🤔

@jezdez @emtwo If I'm not mistaken, you were running this code in your env for a long time now. You haven't seen this exception?