Audio problem: After the nightmare, Elmer rushes back to the log and pieces of his torn-up contract blow around in the air. At this point, you can see Bugs mouthing his catchphrase "Ehhh, what's up, doc?" but there is no sound.
The Big Snooze (1946)
1 audio problem - chronological order
Continuity mistake: When Elmer takes out of his fishing gear, there are pieces of his torn up contract by the log. When Elmer walks off, they have disappeared.