Driver problems on Mac (Big Sur)

I initially installed my Commarker B3 with EZCAD2 using windows, then switched to LightBurn on my Macbook, everything worked fine. Then I switched off my Mac and B3 and when switched on again, it did not find the B3. I had to reinstall EZCAD2 with drivers from scratch at Windows to get the B3 to work at all. After reinstalling EZCAD2 again it worked fine with my Mac, then same thing again after switched off…

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