Arducam and Picam require two different configurations which need to be changed manually from XangleCS
1- From XangleCS, navigate to Status (top-right-corner menu), then click on the options for the first Raspberry Pi. Select “Get detailed info”
2- Change the configuration from Default to 519
Default = Arducam
519 = Picam IMX519 (which includes support for all other pi cameras)