Did as you advised. renamed score folder to homecoming and then update. System still says that the homecoming.exe is bad.
It also says the shaders in the COX file are bad as well. Did the update add a folder? I found the COX folder in an NCSOFT folder.
Lastly I got a Warning - detected crash. Current system requirements are NVidia GeForce 2 or better, ATI Radeon 8500 or better, or an Intel GMA 900 or better. I have a GeForce GTX 1050Ti and my drivers are up to date.