Here's a video capture of the problem I'm having. Paygate Log showed the transaction as well as the User Upgrade Transaction Log. It upgrades the user but dumps them back to the home page.
Thank you for the video. One question though: your description and your video shows it goes to the homepage but the title said it's white screen. What does that mean?
@xfrocks I did the paypal so I could get support on this and have not heard anything back. As you can see, it's dumping users back to the home page of the forum instead of the confirmation page. Can you help fix?
After taking a closer look, Authorize.net does not support redirect to a specific page so all transaction will be redirected to homepage.