Hey @FaIIenAngeI777,
It sounds like the game is getting multiple inputs simultaneously when you're hitting the RT button. Do you have any other USB devices connected to your PC aside from your mouse, keyboard, and controller? If so, can you try disconnecting the other devices to see if that makes any difference at all? Sometimes I've seen similar cases where having other input devices can cause issues like this.
Let me know how that goes when you have the chance. Thanks!
/Kent