Usually if I’m trying to quote someone’s quote of someone else, I’ll just use the “Reply” button and then hit the speech balloon in the left corner to quote the entire thing, and then edit out any bits I’m not wanting to quote.
Alternatively, you can edit the incorrectly-quoted bits to add in the missing quote tags, but that’s usually more work.
On the original issue, I’ve seen it a bit inconsistent lately myself. Usually if I just re-highlight the text a few times, it eventually shows up again.
