[GAMEPLAY] Cursor problem !!!

Hello, I will try to explain clearly cause i'm not english. Here's the bug wich a LOT of people are facing : With SOME champions (like syndra, renekton, gnar, darius for exemple) there's a bug witch comes RANDOMLY. This bug is a changing of the cursor. It means that's the cursor (the yellow hand) changes with another RANDOM cursor (either the red sword or the blue .... thingie ?). The problem of this bug is, aside from the visual problem, that you can't PING anywhere, or click on the MINIMAP while this bug is active. The way to make this bug disappear is ... there's NONE. It's totally random. Sometimes it goes when you die, sometimes it's when you cast your ult, or sometimes it goes without a reason. I have asked about it in the french support, but no responds from the admin. And there is a lot of people asking about this (no responds either for them). This bug is a bit old (I started to have this maybe three month ago ?). If you can search about the cause of this problem, it would be great, cause it's really incapacitating. Peace from France.