[chrishajer]

> I can’t really switch the theme as my clients

> customers are using the site as we speak…

> changing the site now wouldn’t be a great look.

Yeah, but it’s broken now anyway, so what’s worse? If you don’t want to change it, I understand.

How about just creating a duplicate of it, duplicate the database, copy over all the files from bbPress, then change the domain name or something, or just access it by subdirectory, all on the same server. See if it’s still broken there. If it is, good, you have a good test environment. Now, try the stock theme, and try turning off plugins one by one (all twenty of them) and see when the problem goes away. You have far from a stock installation, so something in your forum or on your server has changed enough to create this problem.