I have an app published in Windows Store for quite some time and recently through some users I came to know that the price of the IAP items is not being displayed in non-US regions, upon investigation I found that this call never returns in non-US region and works fine when the store region is US.
var productListing = await CurrentApp.LoadListingInformationAsync();
In recent times I have not edited or re-published the IAPs in the store. This issue is causing monetary loss for me in non-US regions.
Okay. I was able to look at, and debug your issue. It seems there is a problem with the product document. It is missing key pieces of data. Unfortunately, you cannot fix it yourself. The correct team is aware of the issue and working on a fix. It will be corrected shortly. Sorry for the problems and thank you for letting us know!