Android app hardcoding to GBP

My app on Android 8 shows all transactions in the Curve cash wallet and the Insights feature in GBP by default. Why isn’t it set to the default currency of the card settings on the underlying currency of the cards used?
I am a curve blue user with Euro cards only but i want to see my curve cash and insights reflected in the currency that was spent based on the card used.
This is a bug from the perspective on non-UK users.