When you generate your keypair via GpgOL, the newly generated keys are not loaded in the security confirmation dialog:

You can choose the newly generated key for both input fields, though:

Although this is a working workaround the most obvious thing for a user to do is hit "generate key" again, as it didn't seem to work. And thereby generate a second key, which again will not be shown without opening the dropdown.

Expected behavior: The newly generated key is immediately shown in both fields and the action button changes from "Generate" to "OK".