LightBurn can't find the laser after MacOS security update

[Rick (Technical Evangelist)]

Hi Bill, I was offering you feedback over on the AP Laser User Group on FB. Thank you for posting here and welcome. Together, we should be able to help you get this sorted.

I am going to repeat myself here a bit to help others catch up with that discussion. Please bear with me …

LB Mac not sending file through USB

This is unfortunately a known issue with MacOS and FTDI devices. FTDI makes the chip that Ruida and TopWisdom use for their USB serial ports. Apple includes a driver in MacOS that handles ‘virtual serial port’ devices, including the FTDI chips, but if you have the FTDI driver installed (and most do) they basically fight over who gets to talk to the port, and it gets locked out until you cold boot the machine. The PC doesn’t have this problem (not even a PC running in Parallels on a Mac). Thi…

Did you get a chance to review the above post? Are you able to reconnect after you have done a cold boot restart of your Mac and then restart LightBurn?