Quickcast bindings ignored by Linux

[listorez]

Your system information

• System information: https://gist.github.com/listorez/cea4f3326d4ea9d50f566a84b51e5921
• Have you checked for system updates?: Yes
• Are you using the latest stable video driver available for your system? Yes
• Have you verified the game files?: Yes

Please describe your issue in as much detail as possible:

I have quickcast key bindings for several heroes (e.g. Dark Seer). When I start Dota, sometimes all of the key bindings for these heroes do not work at all (can't even press T to teleport).