I noticed that I was unable to zap someone else earlier. I thought it was because they had not set up their Lightning Address on their nostr profile yet.
After reading your note, I thought I would try zapping you for it. Can't. Not an option on Coracle.
Do YOU have your lightning address set up?
I opened https://coracle.social, found another zap-worthy note, and successfully sent a zap... so it's not that everyone's zaps are broken.... not sure what else may be going on.