Some in-app purchases can't be done

Hi CG,
For the past few days, some paid items in the store haven't been working (like the Conquest Ascent).

When I select it in the Windows app, I get stuck on the loading cursor (the spinning gears) and I can't reach the payment method selection.

However, the Android version works, but only with Google Pay!

Could you check if there's something wrong?

Thanks