Arc By Three Points returns wrong parameters

I was dealing with Sandbox and found a weird behavior with the angle parameters of an Arc By Three Points in Dynamo.

The Constructor is working fine but the angles are somehow wrong, I tried to use them to create a new arc by center point radius angle and the result did not overlap with the original arc.

I used some extra nodes to retrieve the correct angles using some auxiliary geometry (second image) but it works only in the XY plane.

It should be an easy fix for the Dynamo Team.