Error in base file

I am modelling a Slab System using GiD 14, Static analysis.
I got an error in base file “Embedded Reinforcement” does not exist, when it started to calculate.
I attached an image that shows the error.
error in base file.PNG

This bug is really related to the ATENA problemtype, not to GiD.
Really must be asked to its developers, not to us.

I have a local copy of a version of this ATENA problemtype, and having a look to the file of the error message
\problemtypes\Atena\include.src.bas\Write_Clasic_Bar_Element.bas
I can see this that is complaining in this line:
*If(ElemsMatProp(Embedded_Reinforcement,Int)==0 && ElemsMatProp(Application_from_Interval,Int)==IntervalIndex)

because the material applied to the geometric line that generate the mesh line element doesn’t has applied any material with a question field named “Embedded_Reinforcement”.

I had a look to the file .mat of the problemtype and only the material named “Reinforcement” has a field with this name, then it seems that must assign to these curves a material derived from Reinforcement (and generate the mesh again to transfer the material from the geometry to the mesh)