Data transfer from iPhone XR

[Downeaster59]

My new iPhone 13 Pro arrived today.  I decided to do data transfer from my iPhone XR using the Quick Start method.  Both phones are on iOS 15.  I followed the instructions.  The transfer seemed to go as expected.  The message came up that the data transfer was complete, so I assumed that all was well.  My 13 Pro had activated and worked as expected.  The icons for all the apps that I had transferred from my XR had the message "Loading" under each one.  That was four hours ago.  The status of those app icons remains the same.  I have since done a reset on my XR to prepare it for a trade-in.  

There's been some kind of glitch in the data transfer process.  What are my options to fix this?  Thanks!