Replying to myself as I've found the solution. If other people face the same issue they may find this to be the fix.
under /etc/environment I had the line: QWS_MOUSE_PROTO="Tslib:/dev/input/event1"
However, this didn't seem to work. I'm not entirely sure why, I'll probably look into it.
If, however, I use: export QWS_MOUSE_PROTO="Tslib:/dev/input/event1" , and then run the application, it functions correctly.