Thank you for the tip. I just downloaded the 4.9 version and on my MAC that also causes a problem with fusion 360. When I try to print, I tries to open CURA but then it crashes first. Once the app is open in my background and I try to start the printing again from Fusion 360, now it will post the object into CURA.
All I want to find out, where in the software can I define to which port to connect. My CH340 USB port on my laptop is connected to COM5 and that same laptop connects perfectly to my Ender 3 Printer without any problems at all.
Thank you again for the tip but I was hoping that I can tell an application how to connect to a printer.