It should be possible, just received one from a pleb :)

It seems there are some issues when the feed reloads and the zap pop-up closes suddenly. Devs are working on it.

Workaround is scrolling a bit down before hitting the Zap button.

Maybe try with another peer and check if working :)

Zap ⚡️ received! Thank you! Now it’s time to spread the nostrlove