The one and only beef I have with TESB is the ambiguity pertaining to how much time Luke spends training with Yoda on Dagobah/Han, Leia, Chewie, and Threepio spends travelling from Hoth to Bespin without a hyperdrive.

Personally, I just run with the idea that several months to a year passes between the Battle of Hoth and the duel on Cloud City, with relativistic time dilation keeping the crew of the Falcon from starving/getting too rank while in-transit to Hoth, but that could have been made clearer in the actual film.