The numbers flicker wildly (e.g., X: 10, then X: 500, then X: 10) every millisecond. Root Cause: A floating ground or a failing encoder. The hardware is sending garbage data. Fix:
If a significant delta (change in position/rotation) is detected, the software recalculates the projection matrix. This is the "update" moment. The viewport or live feed is redrawn using the new axis parameters. live view axis updated