The other issue is that Page Titles are not being generated for Topics. All topics have the default page title of: Deck Stain Forum | Best Deck Stain Review Ratings
It comes from SEO plugin, if you use All In One plugin please change it to Yoast SEO. We're currently working to fix SEO plugin conflicts. They conflicts with built-in wpForo SEO, but Yoast SEO.
FYI, I tested this be deactivating AIO and activating Yoast. The Page titles were still not being generated.
It means the conflict is with Yoast. Try to deactivate it and test.
It means the conflict is with Yoast. Try to deactivate it and test.
Tested by deactivating both yoast and AIO. No titles were generated.
Ok, then this is not SEO plugin conflict. I see wpForo SEO works fine for meta description. Only meta Title are not being replaced. This comes from theme, it seems some hook is not properly used by theme developers. There is a WordPress Theme Codex issue with this theme.
Also please deactivate other plugins too and delete cache + do Ctrl+F5 on forum pages before checking.