Here's what you need to do:
- In the developer portal. delete your old certificate used for signing apps with iosbuildservertest
- In ai2, use the Download Certificate Request to create a CSR with your ai2 keystore
- Upload the CSR to Apple following our existing instructions on how to create a certificate
- Edit your provisioning profiles to select the new certificate
- Remove the old provisioning profiles from your project asset and import the new provisioning profiles that reference your ai2 certificate
Once you've done that, signing will happen with your ai2 keystore.
Edit: Alternatively, if you do not rely on your ai2 keystore for anything, you could just export the keystore from the test server and import it here.
Always make backups of keystores since we are unable to recover them.