Flash with Balena has made USB drive write protected

I have tried to flash Linux Lite to my USB drive and it said it worked but then asked me to format the drive. When I try to do this it says it is write protected but I have used it before and it wasn’t write protected then. Also Windows 10 now asks me to format it and then says it is write protected and doesn’t show any files on the drive in Explorer.

So I cannot now use the USB drive at all.

What has happened? Any help really appreciated.