Of all the times the Titans are around garbage/odor-making things, they are only bothered twice by the smell.
When Raven is teaching Beast boy how to throw away trash, the title cards are opposite of what they should be (I.e, the "choosing what to throw away" card directly precedes the one that deals with actually throwing away trash, and vice versa.)
When the Titans are in the garbage "river", Cyborg says that they are underneath Beast Boy's sweaty shirts, but when the roof is shown, all of the sweaty things are actually socks.