Other mistake: When Donald crashes his car, a tire comes loose and rolls toward Chip and Dale. As the tire falls over them, Dale disappears for a fraction of a second.
Continuity mistake: When Donald Duck crashes through the roof of his trailer, the door flies open and pots, pans, dishes and other items fly out and land on the ground. In the following scenes showing the trailer, those objects have vanished.
Continuity mistake: Upon seeing Donald Duck's footprints in the sand, Chip walks the length of one footprint, leaving eight of his own footprints as he goes. He fetches Dale to show him Donald's footprints but when Chip reaches the footprint he walked across, his own footprints have vanished.