Hello, we have been experiencing this issue as well for the last week or so. Many of our sandbox accounts encounter this problem, but some don't and it's not clear as to why, from our side. I have confirmed that the Interrupted purchases settings are not active. However, I have also tried to test the Interrupted purchase setting and it would seem that this feature is also yielding an empty Terms & Conditions pop-up, so there might be 2 issues (1- activating the setting incorrectly 2-problem with loading the ToS) I have attached 2 images, one for the warning that ToS were changed, and the second for the result without the Accept button or content.