When working with ≥64 chests or shulker boxes and /fill in the same chunk, some funky errors occur.

To reproduce:

1. First, set up two command blocks. One that fills an 8x8 or greater area with air, and one that fills it with shulker boxes. Make sure this area all inside one chunk.

2. Activate the second one, filling an 8x8 area with shulker boxes.

3. Then, activate the first one, filling it with air.

4. Then, place a chest in the area that used to have shulker boxes.
   --> Observe that it is a chest, but is rendering as a shulker box.

If you do this inversely, with filling chests, and placing shulker boxes, then you will get a crash and the following error:

Description: Rendering Block Entity

java.lang.IllegalArgumentException: Cannot get property bcu{name=facing, clazz=class eg, values=[north, east, south, west]} as it does not exist in bci{block=minecraft:purple_shulker_box, properties=[facing]}
	at bci$a.c(SourceFile:144)
	at cdb.a(SourceFile:70)
	at ccz.a(SourceFile:134)
	at ccz.a(SourceFile:122)
	at cba.a(SourceFile:674)
	at cau.b(SourceFile:1178)
	at cau.a(SourceFile:1086)
	at cau.a(SourceFile:944)
	at bob.b(SourceFile:822)
	at bob.a(SourceFile:382)
	at net.minecraft.client.main.Main.main(SourceFile:140)