I have an ortur lm3 that I have connected to a Mac but I bought a new hp and want to use it. When I do “find my laser” it finds it and I can add it to device list, I can make it default laser but then it’s like I’ve done nothing, it disappears. I tried doing no machine mode first then finding the laser again, but it’s the same story. I’ve closed and reopened lightburn but have no idea what to do now