Can you take a screenshot of the circle animation and where it happens? Do you get to the point where the metamask transaction happens or is this before that point?
I’m unable to reproduce the issue. That last address in your screenshot isn’t a valid address, or it’s cut off. I’m seeing:
0x22E38662F88d65181ad16CB486CD1DB58D73431
which appears to be one character short.
Have you tried clearing your browser cache and refreshing? Have you tried just choosing the snapshot without the two additional addresses, clicking airdrop and seeing if that works (reject the transaction if it does, just trying to isolate the issue).