AutoCAD 2013 :: Copy / Paste From One Drawing

We installed 2013 version of Autodesk Civil3D, and strange things with Copy/Paste from one drawing to another happend!

If I try to copy some autocad objects like solid HATCH for ex,. from one file to another - I select drawing copy from, select Hatch, press Ctrl+C or rightclick > Clipboard > Copy, then select destination drawing, press Ctrl+V or rightclick > Clipboard > Paste, and I see in command window: 

" _pasteclip Duplicate definition of block _Closed ignored.Duplicate definition of block _DotBlank ignored."The time interval is very long for single hatch copying.

 I tryed audit/purge, and copying the HATCH again,  - and now I see in destination drawing some strange array of LINE obects, it is not my HATCH!  AutoCAD always starts do temporary save while doing this copy.

Else, if I open new two pure drawings, and start copy any types of acad objects between each other, so all works fine and quickly, no temporary saves, only remarkable pause starts  above  20000 object copying, its quite acceptable for me, and still shorter time, than copy a single HATCH.  

I suppose the problem is in drawing file, because if we make purge/audit than save and reopen drawing - sometines is it possible to copy, but after all we need to do this each time we want to copy acad objects to another file. This annoying issue have our another team members too, it prevents to do our job. 

I found, that with HATCH object some blocks is ALWAYS copying  from one file to another.