iTunesConnect: cannot transfer app because of “You must turn off TestFlight beta testing for the app that you want to transfer”

Question

Below you can see that testing for external testers are turned off:

same for internal testing:

but when I transfer app, one of the criterias are not me

Answer 1

I've exactly the same problem and could not solve it. The good news: After contacting Apple, they have confirmed a bug and they're working on a solutions. Apple confirmed also, that many developers ran into this.

Got that workaround from the support (that did not work for me):

1. Enable TestFlight by adding a tester to a build

2. Then deactivate the build, by turning off TestFlight beta testing

3. Attempt to transfer again