So when you make an object very small, the X,Y,Z dragging position arrows are huge basically making visibility of the object impossible.
Make an object very small (0.05 or smaller)
Suggestion to fix issue:
Make X,Y,Z positional arrows when object selected scale based on current zoom… so when you zoom in closely, the positional arrows will shrink, enabling you to still see the object, and when you zoom out, vice versa. Currently the positional arrows remain the same size at any zoom.