Pressing and holding the keys to Jump, Walk Forwards and Sprint at the same time will cause the player to only jump in place.

I don't think this is a hardware issue like MC-54194. Using those three keys simultaneously works with the exact same hardware on Minecraft 1.12.2. Pressing and holding Sprint, Walk Forwards and Jump in that order makes the player sprint and jump as expected, only if the keys are pressed at the exact same time the Walk forwards key is ignored.