Family sharing not working for new family member

For the new member that you are trying to add, did you install the same Infuse for them as the one you’re trying to share? If you have the purchased Infuse Pro version they also need the same one. If you have the Infuse (not pro) that is upgraded to pro version via the in app purchase they need to install that one.

There is a difference in how they are shared too based on which version.

The plain Infuse is here in the app store

The Infuse Pro is here

Here’s the info on that Infuse Pro: Purchases, Upgrades, and Family Sharing