I get this error when I try to apply any treatment in Product Page Optimization. I already have screenshots for the primary language. Still haven't received any solutions from the support team.
Unable to Apply Treatment
You must upload at least one screenshot for the primary language of your app before this treatment can be applied to the following:
7.14 Ready for Sale
Is there any update on this? I am getting the same error. The Product Page Optimization test is with the primary language localization. I would like to use this feature to update App Store screenshots without having to resubmit binary, but does not seem to work.
agreed, I got this error this week, my app is only available in one language and its selected by default with no other choice when creating the treatment. This is extremely broken