difference in results of the post1 and post26 preprocessor for the same problem

[harishkalyan]

Hello..
I am modelling a soild 185 element with 4 shell lay ups under a simple tension test along the X-direction.
The results of the stresses I obtain in the X direction from the post1 and post26 post processors are different. Can somebody clarify the reason this is so??
Thanks

 

[harishkalyan]

sorry for the mistake in the title....its post1 and post26 post processors not pre processors....