I have problems when I like a post the message in that post disappears.
Running your scrim, I'm not seeing a message disappear when I like a post.
If I open the replies to a post, then I click the ❤️ button on any post, I do see the replies "disappear". But they're still there -- they've just been rolled back up into the parent post. Is that what you mean by "message in that post disappears"?