It should eventually load. Sometimes the Tor implementation is slow in Amethyst. I've also killed the app and restarted when I had this happen and things didn't load in a timely manner.

Can’t see the reply. Ope!

it may be stored on a relay where only outbox/gossip type clients may reach

Click the hamburger menu, share the event to your browser, it will be an njump.me link that resolves