Mac M1 running 2 lasers

I have a Mac mini M1 and I’m trying to run 2 lasers. It worked before but something changed. There are 2 modem ports listed under devices but when I switch between the two one of the lasers quits running and it says it’s still streaming and I have to power cycle to start over. I had 2 working before with one instance of lightburn but I can’t get it to work again. Any thoughts or what I can change? They work independently.

Perhaps it’s been a while since you’ve done this but this would have never worked with a single instance. You need to run a separate instance of LightBurn for each laser you’re trying to control.

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