We have our two driving joysticks and one utility joystick plugged into a hub, whose wire comes out of our driver station enclosure into another hub on top of the enclosure, which has our buttons (launchpad) plugged into it and an ethernet port. That second hub plugs into the DS computer. This set up has worked fine for years but recently has developed an issue where the right joystick reports (on DS USB tab) deflection when the stick is a zero position (an robot drives with no stick deflection). Sometimes the defection starts at zero and works fine but most of the time there is some amount of deflection when the stick is at physical zero. Unplugging the cable from the JS internal hub to the second hub and plugging back in will clear this issue some of the time. Further, while the problem predominately happens with the right stick, the left stick will display this behavior on occasion. The Utility stick has not displayed this issue.
The fact that it does happen to both left and right sticks suggests a hub issue not a JS issue. But it is interesting that the utility stick has not had this problem.
Thoughts?