Right now, if you make a category queue, the posts get pulled in without the first comments that were added to them when they were originally posted.
Since social platforms suppress posts with links in the caption, using the first comment to link to a page or blog article is common practice. But since queues don't allow first comments to be brought in, the posts will re-queue without any link at all. This leads to posts that say something like "click the link in the comments for more information" and then break that promise with no link.
The only way to correct this currently is when a category queue is first created. You can add the link back in, but since category queues can't be edited after being activated, any future posts that get added to them cannot be edited to have the links (unless the entire queue is deleted and re-created, which means redoing all the work for all posts that were edited previously as well).
It would be convenient if the first comments could be pulled in with the rest of the posts to avoid this issue entirely.