key import failure [mac os x]

Hi,

I sent my public key to one person using Mac OS and he claims that he can't import it. I don't think this is keybase issue, just to let you know.
He said that:
it process the key but cannot add it for no particular reason (GPG Keychain)

-Jaro

Start by reviewing the attached screenshot and reproducing the reported public-key import in GPG Keychain on macOS. The report does not identify the key, client version, or a repository file or test; done would require isolating the import failure or documenting that it is not a Keybase issue.

Written by the indexing model from the issue text.