Bug

Recently i have started to play with Nasus and i realised that i cant see the range where it becomes visible when you press any ability like the W for instance.The circle range dose'nt appear in short or if that makes sense , plus when i ward somewhere it dosent points where its gonna put the ward and the range of vision it'll grant. Same as with Zed, morgana and all those champions which involves aiming. I think there is a bug in my account or game dont know what it is. Any ideas about how to solve it