The inconsistency error can happens some time but it is hard to find why (as far as I know).
I'm not very confident in SR4 so I would, if this is possible install SR5 and test again.
If problem still happens on this specific document I would check the document Log, and server events logs.
I would also try to reload the document using Qlikview Developper.
Hope this will give you some clues
If you still encounter internal inconsistencies in SR5 (reload the document with SR5 as well) please get in touch with QlikView Support so that we can help you in setting up crash logging.
Type-D is most likely related to an issue with document but it can only pin-pointed if captured properly. This can be something very simple such as a corrupt object in the layout but the best outcome is usually achieved via crash logging.