Restart the app and try again? If I had android I could help more. If it takes NWC then it should work no matter.
Discussion
This is how far it gets. The little purple circle. I just restarted the whole phone, no effect. I think I must have missed something in setting it up

I don’t think there is much to miss. Maybe nostr:npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z knows how Coinos and Amethyst are currently working together.
Maybe the guys at nostr:nprofile1qqst4qyeqenw7zm0fwjsty68h6cnys5jre2xd8ngqpjv5a2j26s78fspzemhxue69uhhyetvv9ujucm0d9hx7uewd9hj75a0pev can get you sorted? They are usually pretty responsive.
Yeah good idea. Hey nostr:nprofile1qqst4qyeqenw7zm0fwjsty68h6cnys5jre2xd8ngqpjv5a2j26s78fspzemhxue69uhhyetvv9ujucm0d9hx7uewd9hj75a0pev help me out. I'm using Amethyst and sending zaps isn't working, though receiving is