I can't really say how much of a bug this is, as structures are notorious for being quirky.
Seed: 344545921345171142
X: -1532
Y: 63
Z: 2003
Dimension: The End (duh)
There are a few issues like rooms not connected, chests not generated (already an existing issue), and missing hallways.
It looks like the ship may have deleted some of the pathways.
A similar issue was recently fixed. Is this still an issue in 15w44b? If so, please explain the issue in detail and provide steps to reproduce it.