### System information - **SolveSpace version:** <!--e.g. 3.0~3dd2fc00; go to Help → About...--> v3.1 https://github.com/solvespace/solvespace/commit/70bde63cb32a7f049fa56cbdf924e2695fcb2916 - **Operating system:** <!--e.g. Debian testing--> windows 10 64    ### Expected behavior show interface to use <!--What should have happened?--> ### Actual behavior an empty black window <!--What actually happened?--> ### Additional information <!--For bugs, please attach a savefile that shows the problematic behavior. You can attach `.slvs` files by archiving them into a `.zip` first.-->