This same problem happed twice today - June 7 2021. Apple's identifies/provisional profile server was down earlier and now this! On WWDC day too. Don't push code until you know it works.

ADDITION: Discovered that Localization will only save one of keywords, promotional text, or description per visit. So we need to save the keywords in all of the languages, then go through promotional text in all languages and so on. Doesn't matter how many times you try to save it will not keep them all.

Same problem here. Solved. 2208x1242 in landscape worked. Apple needs to update the dimensions from 920x640. Someday...