Problems with Unreal 4

When I want to do something in Unreal, this is a bit heavy, my pc does not get stuck, but the Unreal interface gets colored. I do not know if it is my graphics card that is dying.
(my pc specifications are below minimum requirements, but I can still play games made on Unreal 4)

graphic card GT 430
ram 4gb
cpu i3-4150
vram 2gb

You’ve answered your own question - your specs are below the minimum specs required to run the editor.

It does however also sound like your graphics card may well be on it’s way out and in need of replacement.