After Import from Joomla: “?” Symbol at the End of Posts

So, I followed the wonderful instructions at https://rangit.com/software/6-steps-how-to-migrate-from-joomla-to-wordpress/ to import my Joomla posts into WordPress. It worked like a charm but it did a couple odd things.

First, it added the MORE tag to every item, even though it wasn’t needed. No biggy here, I did a MySQL search and replaced it with null.

This problem has me stuck. At the end of almost every post, I have this little ? symbol. If it’s not showing up, it’s a black diamond with a question mark in it.

If I edit a post containing it, it shows up in both the visual and code views. Also, why does code view hide break and paragraph tags?

If I look at the raw MySQL container for the post (post_content), everything looks fine. But it seems if I delete some extra space somewhere, the symbol does away. Any idea what the issue is and how to get rid of all of these?

Is this a collation issue? My database tables are set to “latin1_swedish_ci”.

Thanks!