Jaitea said:

The only thing that I notice now is Han surveys the droid over the cleaned up hill, shot of the droid with a hill in the foreground...after the droid shoots at Chewie Han enters the scene & takes cover behind hill....after shooting at the droid the face on shot of Han shows that he is taking cover at the same hill he surveyed at in the opening scene

J

Apparently they didn't have a shot of Han surveying, so they used an alternate take of him peeking over to view the damage. This is why Ady had to remove the debris in the first shot to try to make it look like a different hill.