Hi @bergen288 ,
According to your error description, you can open the Web URL link button normally on your PC, but touch the Power BI Home box in Power BI mobile app on my iPhone 11 doesn't work as expected.
The mobile app spins a few times, but nothing is changed, If it's convenient, can you try again to see if the ability to add hyperlinks (URLs) to tables or matrices opens properly in your Power BI mobile app?
Add hyperlinks (URLs) to a table or matrix - Power BI | Microsoft Learn
If you encounter the same error, you can check the permission settings of your iPhone 11 Power BI App to see if you are allowed to open third-party links and pop-up browsers.
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.