After Moe hits Larry on the head with the janitor door, he looks at Larry for a few seconds because he forgot his next line.
During the camera pan from the Svengarlic poster to the door, you can tell there is another panning shot to replace the old footage with the new footage when Svengarlic and the bank robbers come in through the door.
Because this short was a remake of Hokus Pokus (1949), the original footage featured where the Stooges are on the flagpole and Svengarlic's assistant worries they are still up there is out of place in the remake. In the new footage, Svengarlic is working with two safe crackers who use the Stooges as dupes in a robbery attempt. Because Svengarlic and his assistant were completely innocent in the original film, the remake would have them care less about the Stooges' fate.
The falling buckets in the store room where the Stooges are changing makes it hard to hear Moe's line "Who slammed that door shut?"