The bug
Originally discovered by @unknown in this video. To reproduce, place two chests across a chunk boundary (only some orientations may work), stand on top of one half, looking away from the two chests and move the camera up and down.
How to reproduce
Reproduction steps for standard superflat world:
/tp @p -272.73 16.88 257.53 92.55 62.45
/setblock -272 16 257 minecraft:chest[type=right]
/setblock -273 16 257 minecraft:chest[type=left]
Slowly look up and watch the double chest appear at the bottom of your screen
Related issues
is duplicated by
relates to
Attachments
Comments


Also confirmed by @unknown here MC-1058, Comment 285244
Uploaded his 2 screenshots into the bugpost.
Confirmed for 16w06a then }=)

Additional note:
Panda4994 demonstrated it very well in his video (start watching at 23:00 min in for 2min).
He also provides the reason why it happens, so a fix should be easier to do.
He argues though that he doesn't know if a fix would negatively impact performance, so please make sure it doesn't when you fix it.

This got fixed in 1.15, it used to render the whole chest on type=left, now both type=left and type=right render their corresponding halves instead.

Cannot reproduce in 21w03a, resolving as Cannot Reproduce.
Please let us know if you can still reproduce this in the latest versions.