I have the fix for you sir.....
First navigate to the steam skate folder and delete preloader_l.dll, eaanticheat.dll and the eaanticheat.exe, you might need to kill the ea background service task in the task manager to delete preloader.dll.
Now head to C:\program files\EA\AC and delete all files inside of AC.
Now go to steam verify files of skate.
Now head back to the skate folder and all three of those files you deleted should be back the preloader_l.dll, eaanticheat.dll and the eaanticheat.exe, this time mark all of them as read only.
If for some dumb reason that still is an issue then mark the eaanticheat.exe and the skate.exe files with run as administrator and disabled fullscreen optimization.
That certainly is going to fix it, and you are welcomed. Enjoy.