Red preview laser runs instead of cutting

I’ve been running a 50W JPT fiber laser for roughly 8 months now. It’s an ezcad2 board controlled with Lightburn on windows 11. It’s been great up until recently, where the other day I’ve found that the laser won’t run an engraving job but instead shows the RED Preview laser scanning the same path.
Any ideas?
thank you!

I’ve tried uploading an MOV file to show the issue but the file type isn’t accepted (on the forum)

Do you mean the laser doesn’t have any power output?