After iTunes update it will not open when iPhone XR is plugged in
Prior to iOS update to v14 iTunes had stopped opening when I plug in my iPhone XR. After update to iTunes BackUp fails initially but works on a second attempt. Uninstalling and re-installing iTunes and resetting the iPhone several times has not corrected the issue. iTunes still does not open upon plugging the iPhone in (yes I've double checked the settings in iTunes). Manually opening iTunes and plugging the iPhone in shows that both the PC and iTunes see the iPhone, at which point the Back Up fails. Lightning cable works fine when plugged into a secondary PC with an older version of iTunes.
iTunes version 12.10.9.3
iPhone iOS version 14.0
Windows, Windows 10