Recursion too deep
If the mesh ends up with 3 nodes at a tight angle, RAM Concept attempts to use recursion numerous times to adjust the nodes and make the minimum angle larger. In such a case, the standard number of recursions did not solve the tight angle, so the warning message reported that the recursion was too "deep".
This does not generally cause a problem, although it is indicative that there is a "pointy" element which can affect the contour plots. Generally, it is best to avoid this situation. See "Feature eliminated at (x,y)".