[SDL2] - Any Linux - USB Gamepad Stuck Pressing [UP] Until Pressing It?

Hi,

Revisiting an old SDL2 project now.

On Windows 10 Pro 64Bit everything is perfect.
On Linux(any), when game is run the USB gamepad is stuck pressing [UP]?
(pressing the USB gamepad fixes the above issue?)

Any ideas?

EDIT #1: Code: https://paste.opensuse.org/ae73fa9d

Jesse