Problem with importation of Uniplot .u3d file to Adobe Acrobat X Pro

Hello everyone,
I am trying to import .u3d files created with Uniplot R2015 to Adobe Acrobat X Pro. My Operation System is Win 7 64 bit. My procedure so far was: Tools -> Multimedia -> 3D. Than I Choose the .u3d file but there is always the same error message:
"An error occured while analyzing 3D-Data" (Translated  into english). The graphic window is Grey and there is nothing but the coordinate System.
Has anybody ever tried to Import .u3d files from Uniplot to Adobe Acrobat X Pro or has an idea what might be wrong with the created .u3d files ?
I can give you the u3d-file via E-Mail if send your address.
Thank you in advance for your help

Hello Dave
the Problem affects all Uniplot 3d Files. I start with an Excel or .txt file with 3 columns and uniplot creates an engine diagram similar to this one: http://www.uniplot.de/documents/de/_images/Uni_BSP7-2.png
Uniplot can Export this as a .u3d but it can not be opened with Adobe. Then I tried to open the .txt.file with MeshLab. I can see the correct Points (which Uniplot uses to create the engine diagram) but of course they are not connected. If i Export those Points in MeshLab as a .u3d file, Adobe can not work with it.
I do not know how to deal with this Problem. Do you have any suggestions?
Thanks in advance for your help

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