This post doesn't show up for me in either all my posts or the tag it's tagged with, whether I'm viewing as this or one of my other pages; I had to browse cohost logged out to be able to find it. The post isn't silenced, and it's not part of a reply chain where someone has me blocked or vice versa, so that doesn't seem right. Weird!
Edit: I shared it, and the share showed up at first, but now it's also only visible to me when I'm logged out. Freaky.