Joystick slider stuck at 1.0

Hi all,

I have been developing a project using Logitech Dual Action Wired Joystick (F310), and it has worked very well. After a day or two away from the project, the joystick slider channels (LT, RT buttons) are suddenly stuck at their max value. Any idea where does might come from?

Verified that the channels work properly for games of Logitech hardware software (that allows to preview of each channel separately).