What Edge driver or DTH was assigned to it?
If an Edge driver, install the zigbee Motion Sensor Mc driver and switch to it on the device and see if resolves the issue. If it was assigned a DTH, you would need to install the Edge driver, remove the device, add it back by tapping Scan for nearby devices.
link to driver: SmartThings. Add a little smartness to your things.
community developed tool to help determine if device is using Edge driver or DTH: https://community.smartthings.com/t/smartthings-api-browser-now-available-to-all/249907