I'm qanon.news anon. I just updated my code to catch this very thing after missing these posts.
Q MUST have posted in a thread for the Anonymous/ID filter to kick in. It won't just pick up ANY post. I'm filtering on Trip then finding the ID.
I've been struggling with the idea of manually inputting the posts that Q has deleted that the scrape window missed - and have decided not to do that. I believe (just from observation) that qanon.pub puts them in manually when they are missed.