Syndra W bug

Hey all, I've been noticing a bug with Syndra when you use her W your cursor stays the same as when your W is active and it doesn't go away until you use your Q. With the bug active, you can't click the map to check whats going on and you can't use smart pings at all. In order to reverse the bug, you use her Q and everything goes back to normal. This has happened on more than one occasion.