Right analogue stick is detected but nothing else

[MadManDiaries]

I stopped playing Amnesia Dark Descent some time ago but decided to begin playing it again, I started up the game but found that my gamepad wasn't working. I can select items from the main menu and select my file to load but once I'm in-game all I can do is pause the game and look around, it's as if the only buttons that work are the 'Start' button and the right-analogue stick but once the game is paused I can then go through the tabs and options as if there is no problem. I can move and play the game normally with a keyboard but due to an injury I find hand placement for gaming quite painful and thus require a controller/gamepad for my gaming.

I never had any issue before and could use a gamepad without any problems at all, I'm at a loss and can't find a solution for this online or in any Amnesia or Steam forum. Is this a known issue and if so is there a quick fix? I was really looking forward to continuing on the story but this issue is unfortunately preventing me from progressing any further.

Thank you for your time,
M Roberts.