It does this sometimes.
nostr:npub108pv4cg5ag52nq082kd5leu9ffrn2gdg6g4xdwatn73y36uzplmq9uyev6 can you be a love and see if our server needs a kick?
Discussion
It's this: https://gitlab.com/soapbox-pub/soapbox/-/issues/1479
It happens when you navigate away from the home feed and then navigate back after some time.