I created a OAuth 2 client Id in Google Cloud Platform(GCP) in our production application. However this was only for internal use, so I removed it and tried to add it again in our development GCP project.
However when trying to add it, it says
Save failed
Requested entity already exists
Tracking number: xxx
What am I doing wrong? Do I need to do some extra steps to completely remove the OAuth 2 client id? I removed them around a month ago already, so it really should be gone by now.