Workaround FINALLY!
Go to "Product Page Optimization" tab
Click in the plus sign to "Create Product Page Test"
Fields:
Reference Name: Test
Number of Treatments: 1
Traffic Proportion: 50%
Click in "Create test"
Upload your images inside the "Treatment A" area
Click in "start test" and send it to review and await apple
Once this review was accepted, you gonna be able to apply the new images to your current published and/or published version.
Send you new app version to app review, like usual.
Topic:
App Store Distribution & Marketing
SubTopic:
App Store Connect
Tags: