Re: Cannot Drag on CAS
@angelia0527 Your particular symptoms are unusual, but issues with clicking and dragging are often related to having an overlay running while you play. So please disable any (Steam, Discord, etc.) you have. Disable Origin in-game as well: hover over your username, select Application Settings, then the Origin in-game header, and disable the option at the top.
If that doesn't help, please try switching among fullscreen, windowed fullscreen, and windowed modes, and let me know whether any of them are better.