When deleting (trying at least) a post, it will continue to show the post, not hiding the content of it, and after a while, it will still show the post up and clean.
Was able to reproduce on windows 10, using google chrome(Version 93.0.4577.82). I tried deleting one of my posts, and it showed the “undelete” button as if it had been deleted, yet it wasn’t.
i have this same issue too. i was trying to delete one of my off topic replies in a topic and it refuses to delete it and hide the content like it should be. hope this probably gets fixed soon