Throttle and Break is broken when controlled by vizzy program

The throttle and brake are continuously raising values reaching beyond it's maximum values when i run a loop in vizzy where the throttle must increase when my surface velocity is less than or equal to zero and set brake when surface velocity is greater than 4. the blue bar to control brake also fly out of its box reaching beyond i supposed its limit value of 1 and the throttle reach values lower than 0 while both of them continuously increasing (decreasing on throttle). i cant do screenshot of it happening because when i try to use the camera its value goes back to its intended maximum value and the options is blocking the throttle. Also vizzy doesn't have options to take screenshots so i only took picture of the rover that use that program and also to submit this bug because its requiring pictures