Multiple page function breaks products that have conditional logic AND dynamic pricing

I have over 50 multi-page forms that each have products that require conditional logic, and dynamic pricing (by using a shortcode).

Because the forms are long and complicated, I purposely waited to upgrade to 2.5. I’m currently now on 2.5.5.3, and can confirm that all my forms are now broken. All my products now have a price of $0 instead of the proper price. When I remove the multi-page function, everything works properly. If I leave the multi-page function, but remove the conditional logic on a product, it works fine. So something is wrong with either the multi-page function or the conditional logic function.

I’ve sent in an email to support but have not head back unfortunately. This issue is easy for me to recreate. I’ve disabled all plugins and caching, to no avail.

Thanks to anyone who can provide any guidance.