With the XR worked Perfectly.When you had your iPhone XR, did the phone ever freeze up and stop responding when using CarPlay for an extended amount of rime? In regards to your question, before I downgraded back to an XS from the 11 Pro, I upgraded both my iOS and Mini software, and it didn’t solve the problem. Another general question- are you using the mini wireless charger hookup (in the center armrest)?
How do you update your mini software?
My car don’t have the woreless charger hookup, or if have I didn know.