I’ve noticed a rendering bug that happens when zooming - the move widget itself. seems to fall apart. I frequently zoom in to check precise alignment, and never noticed this before. Of course, I have noticed rendering anomalies before when zooming in, but that was with the geometry itself, not the UI. I could be wrong, but this seems to be recent builds. Have a look at the screenshots. The zoom widget seems to progressively disintegrate the more you zoom in (as does the grid).
