Are to using nsec login or nsecbunker and which blossom server are you using?
Discussion
I was using nsec bunker, but possibly incorrectly because I didn't know how to set it up and it said I had no keys. Though I re-logged in with my nsec and now it seems to be working!! nostr:npub1l2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqutajft
I had nsecbunker via Amber issues too. I just used my nsec and it's fine as well.