Testflight Not Respecting Notification Preferences

In the past few weeks, I've added a new app, and enrolled an account in TestFlight. However, no matter what preferences I set in the TestFlight app, I still get both an email and a push notification whenever I upload a new build.
This does not happen for apps I had before that point, where the notifications being set to Off still works.
Is there something I'm missing to stop getting these emails and push notifications? Is there something on a website somewhere that I've forgotten to do?