Purple flickering box behind Ipad display using Sidecar
I am using a 2nd gen iPad Pro 9 inch running the latest ios and a 2017 MacBook Pro 13 inch running the latest Mac OS. While using the ipad to mirror the Mac display using sidecar both over Wi-Fi and on a USB cable, I get a flickering purple box behind the displayed item on my ipad. Any suggestions?
MacBook Pro 13″, macOS 12.4