[3.0.3 Crashes when trying to set up printer.]

What OS do you use? If you use Windows, you could try the following:

Replace C:\Program Files\Cura 3.0\resources\shaders\grid.shader with this file:

https://raw.githubusercontent.com/Ultimaker/Cura/1313e01f04838ac0a2d83b332dc57b6f5db0b87c/resources/shaders/grid.shader

When adding the first printer, it is the first time the buildplate is drawn. The shader that should draw the grid lines on the buildplate is broken on older GPUs. A fix was made, though it was not included in the 3.0 release. Replacing the grid.shader applies that fix to your local installation.

Thank you ahoeben. This fixed the issue.

[3.0.3 Crashes when trying to set up printer.]

I am installing it on a windows 10 machine. And I am trying to set up a custom printer because they done have the gMax listed. But when I go to the machine settings, the program freezes before I can even change any settings and then closes itself. I will look into replacing the shaders.

[3.0.3 Crashes when trying to set up printer.]

I havent been able to do anything with the new cura yet. Every time I go to set up my machine setting for the printer, the program crashes and closes.