2021-01-26 20:45:04
I have no explanation for what causes this, but I have had it happen to me quite a few times.
The way I have 'fixed' it involves quite a long wait!
After 30 days (it might even be 40 days), when you look at the Host List, one of the duplicates will disappear off the list. Once this happens, click on "Show all hosts" below and to the right of the list of hosts.
You will see the duplicate in red, and there will be a red cross in one of the columns. Click this red cross and confirm you want to delete (it might say remove) this host. As scary as it sounds, once you delete it, there will be only one copy of the host. This host will be controllable by BOINCStats, and will have the credits. Even though I have done this several times, it still scares me when I do it!
Please note, it may take some time before the list updates with the correct host.
Good luck.