casting by mouse
 

even if the option is turned off, it still casts at your mouse

This is intentional, there was some changed functionality. If you double-click it always casts at your mouse. If you press S, it will cast at your mouse if enabled, or iirc in the direction of the player if disabled. It gives you more options.

I tried it. I did /cast large bullet, pressed S (without cast by mouse enabled) and it still goes to your mouse. I've tried it with multiple spells. No matter which way you do it (double click, press s, with or without mouse casting enabled) it still goes to your mouse. I don't know if this is intended or not

He said it was intentional. It is suppose to cast in the direction of your mouse.

Weird, I will check on this, it shouldn't be casting at the mouse if you press S.

It shouldn't if i have mouse casting off....