Extrude between wrong on the edge, ArcScene

Question

I'm trying to extrude between two Tins which are equally shaped. However if Extrude Between those tins using input feature created by minimal_bounding from one of them I get a strange error that two sides of my extruded block are inclined and thus the result is wrong (please have a look at the img attached).

I have absolutely no clue what could be the reason. I would be very glad for comments. Thank you.

Here are some images to illustrate the problem (thanks for the reputation so I can finally post them ;) ):

I'm using ArcScene with ArcGIS 10.1.

This question can also be found on: http://forums.arcgis.com/threads/77930-Extrude-between-wrong-on-the-edge-ArcScene?p=273925#post273925

Answer 1

Thanks to a helpful staff from esri I was able to solve the Problem with a workaround:

Using a polygon which is slightly smaller produces a multipatch which does not have a dip. In addition I figured out that the point position from the nodes for both tins should be at the same x,y position to get good results of the extrusion.

The Bug is listed at http://support.esri.com/en/bugs/nimbus/TklNMDY5MDQw