not syncing xmpp community from slrpnk.net?

Hello, !xmpp@lemmy.ml was locked by my mods, and continued on !xmpp@slrpnk.net which is entirely fine given federation, so I guessed I could follow it on the lemmy sort of synced space/community, !xmpp@slrpnk.net, where I can post to the slrpnk community without having an account there. But for some reason recent posts on slrpnk real xmpp community are not showing on !xmpp@slrpnk.net, like if they're not syncing anymore.

Any way to remediate it?