DST (Daylight Savings) causes the issue, change your timezone by 1 hour forward or behind to fix it.
Solution 1. (If your the server owner) Inside of your config_gameplay file set the line idle_mode_enabled to false.
Solution 2. (If your not the server owner) Either find another server to play on or tell the server owner of that server to fix it.
Solution 1. Use "RESET ALL SETTINGS" launch option or set your Graphics API to DX11 and use default menu.
Windows 7 is unsupported, Please upgrade to 8.1 or 10.
The game is not supported on Linux.
Just wait for the game to launch, This is a known issue with the AC. If you have a SSD we suggest that you install the game on that.