您指定的指纹已被此项目或其他项目中的Android OAuth2客户端ID使用

I noticed my SHA1 number showing from the gradle view signing report in android studio was different from the one I had originally. I thought maybe it was from changing computers a year ago. My game app was still able to access leaderboards and achievements. I when to my Google API dashboard I noticed the 'OAuth client' had my old SHA1. It wouldn't let me change it to my new SHA1, saying it 'had already been used by this client or another client', although I had no other clients. The mysterious 'Anroid client 1' and 'Android client 2' had neither the old or new SHA1. Underneath the 'OAuth client' was 'OAuth client (auto created by google service)' which had my new SHA1. I went ahead and deleted that one, despite a warning it gave me that it had been used 147 times in the last week (evidence of impending senility on my part I suppose). It seemed I had to delete it to free up the number for my 'OAuth client' that was not auto created. I noticed my SHA1 number showing from the gradl