Edit usergroup but instead it creates a duplicate

[inspiration100]

Confused what's going on here. I edit something in the usergroup manager area, like admin permissions... and I click save. It creates another usergroup called "Admin" with a different user ID with those corrections instead of just saving the old one.
Why is it doing this? Any help would be greatly appreciated.

Thank you!

P.S. I found that my installation of a purchased VBPlaza is doing the error but VBCredits also did it. What might be the cause of this? It's obviously something that involves those two plugins.