Jim Simon wrote:If a Library already exists, you Connect it, not Create it.
If a library is disconnected, it wouldn't produce the error message in the screenshots above. There can be no naming conflict with a library which doesn't exist -- as indicated in the screenshots above (there is no "r" library listed). So the library apparently does exist (hence, the naming conflict), but Resolve isn't displaying it.
Am not at the workstation and can't confirm the bug, but it would appear to be one, based on the screenshots.
To the OP, I would try, just for the sake of it, a longer name.