Hi,
Typically you need to disconnect the github repo and then reconnect it using your account in order to be able to manage it in build.snapcraft.io. If that’s not working let me know and I can poke people who can help.
From the store backend’s side, you are correctly listed as a collaborator, it all looks correctly set up, so one thing you could do is use the snapcraft CLI tool to manage releases if desired.
- Daniel