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We have well over 100 apps in the iOS AppStore, and use TestFlight extensively. We are running into a problem, though, because we have run up against the 10 app limit for testing in TestFlight, but there seems to be no way to remove older apps from TF since they've been Submitted for Review. When we click on the Prerelease tab for a submitted app, nothing is available, so we can't turn TF off for that app.Are we just missing something, or is this a known issue?