Sentry cleanup not working

Hello there,

in favor of GDPR we need to prune all old entries in our project.

I found command “sentry cleanup”, so i tried to run it:

“sentry cleanup --days 1 --project userweb --concurrency 2”

But it will hang and do nothing (for 3 hours now). No item is deleted.

Can you help us here?

Thank you.
John