Hello,
I have recently gotten my hands on a second joystick, and was excited to play the get using a joystick for each axis (one controlling 3 axis of movement, the other the 3 of rotation). Beforehand, when I used to play with only my single joystick+keyboard, i had no issues. But now, after remapping my controls, when I try actually playing the game, it does not respond to inputs from the vertical axis of either sticks. I would appreciate any help in getting this sorted.

The two sticks I have are:
Logitech Attack 3 (Used for movement with the left hand)
Logitech Extreme 3D Pro (Used for rotation/aiming with the right hand)

Would something like this work for you?

Sorry about this. Unfortunately it's hard to say why it's not working - we've had a few reports of Extreme 3D Pro's having trouble with the game, so it could be that.

Either way, while we've done our best to support dual joysticks, in practice there are lots of edge cases with specific setups which break it :( Hopefully the post Aurlaent linked to can help you out.

I tried this fix and it worked wonderfully, thanks!