Interesting. Here's what I did:

Opened mutiny. Opened Amethyst. Zapped you and got this:
 https://image.nostr.build/1e9e9db1f5cef42b4d4b84c8a96cbe9be55774c031a376f7888d9cd4a79137d9.jpg

It seemed to hang there and not complete.

Then went back to Mutiny and zap said it was pending. Went back to Amethyst and it finally showed the zap had processed.