Family Sharing purchase not unlocking paid app version

Hello,

I purchased the full/paid version of an app on my Apple ID, and I'm part of a Family Sharing group with Purchase Sharing enabled. However, my family member is not able to access the paid version through Family Sharing. When she opens the app, she only sees the free version, even though Purchase Sharing shows as active for her account.

Could you please help me understand why the purchase isn't appearing as shared, and what steps I need to take so she can access the app I already paid for without having to purchase it again?

Thank you for your help.