When i trim a wall to a roof the walls disappears! Operating system used: Windows 25 - 7000

Hello. I am new to the forum.In the past few days my ArchiCAD ( v 25 -7000 Full edition windows) lugs both in 2D and 3D.Furthermore it sometime pops a window that tells me if i want Codemeter to do some changes in my PC.I dont know what to do. Operat...