If you randomly see empty posts of mine in your timeline, this is most likely because you're on #Misskey or #Calckey which both don't support certain kinds of posts well yet, it seems. Feel always free to ask and I'll see to help out. Or subscribe to or comment in the related calckey issue report. Or feel invited to try #friendica , #hubzilla or #Mastodon which seem to do better here.
(Sorry for that but that's how the Fediverse works, too.😔)