The OpenOffice process seems to fall into some kind of deadlock when trying to access the same XIndexAccess object in parallel for reading request on the containing elements.

(using cli api from c#)

example:

XIndexAccess ia = DrawPage as XIndexAccess;
if (ia != null){

Parallel.For(0, ia.getCount(), (i) => { 
   var anyShape = ia.getByIndex(i);
   if (anyShape.hasValue() && anyShape.Value is XShape)
   {
       //do somthing
   }

});

}