Hello,
I encountered an issue while adapting to CAD. When I moved the mouse over the tool navigation bar button on the right, the graphic editing area turned black. When I moved the mouse over the graphic editing area, it returned to its original state. However, if I moved the mouse over to an area outside the application to operate and click, the graphic editing area also went black. I tried to restore it by clicking on the area again. I have tried installing dotnet and modifying the registry, but it did not work, or there are other methods that I have not tried. Can we ultimately solve this problem from the code level