Click the Ai artboard then transfer again

This will set the artboard to active and tell Overlord where to define the comp origin (the 0,0 point) of the shapes.

Why?

If your Illustrator doc has multiple artboards, the relative position of each elements is based on the top left position of the active artboard. Unfortunately, it's not possible to know which artboard is the parent of a shape so clicking to set the Active Artboard in Ai.

Unfortunately, Illustrator does not tell you which artboard is active so it can be a little confusing sometimes.