Migration to wpForo QA may have some issues with statistic. Please exclude forum base URL in your cache plugin. Don't use cache plugins for forum. It has its own caching system. Also try to delete all caches in Dashboard > Forums > Dashboard admin page.

Thanks, but the migration is not the problem - that worked great and all statistics were updated.

--> The problem is the NEW/Current posts. The "answer" statistics are not updating in the SQUARE boxes, the "reply" will update in user profile and on forum category as a "post" statistic just fine, but not as an "answer."

Seems like a code issue (not a cache) since "post" statistics update fine, but the "answer" statistics do not.

Just wanted to add that "votes" don't update statistics either - but you can see the vote count next to the actual post - just not in the SQUARE boxes next to the topic title. "views" statistics work fine.

I don't see any information about cache in your replies. Please let me know if you disabled cache plugins for wpForo and deleted wpForo cache. Also make sure the HTML cache is disabled in Dashboard > Forums > Settings > Features admin page.