Good to know which ones for sure. But the fact that it’s the same wallet but two different forms of Lightning addresses might be what the problem was.
Will ask the developers.
Discussion
Until recently even nostr:npub1ex7mdykw786qxvmtuls208uyxmn0hse95rfwsarvfde5yg6wy7jq6qvyt9 wasn’t built for zapping and they had a 1¢ minimum to receive. They removed that as a response to #nostr market forces. 😁