Snapping, rules & guideline rules

What are the rules for when something shows a guide/measurement to an adjacent object. Axure 10 is… very frustrating in this regard.

Trying to get a measurement from the “en” to the icon next to it. Nothing works. Occasionally I’ll get a ruler to the far right and left of the underlying rectangle.
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I very often get some random ruler to an object very far away while closer objects are totally ignored. Failing to snap to the grid is equally annoying, like trying to move an item to the origin of a dynamic panel (0,0) and it refuses and snaps to like -1 or some sh*t.