This was supposedly fixed in 19w11b but it still occurs when I opened a barrel
Time: 3/15/19 10:37 PM
Description: Ticking block entity

java.lang.IllegalStateException: POI never registered at eu

...
– Block entity being ticked –
Details:
Name: minecraft:barrel // brt
Block: Block

[facing=down,open=false]
Block location: World: (525,67,-316), Chunk: (at 13,4,4 in 32,-20; contains blocks 512,0,-320 to 527,255,-305), Region: (1,-1; contains chunks 32,-32 to 63,-1, blocks 512,0,-512 to 1023,255,-1)
Block: Block

[facing=down,open=false]
Block location: World: (525,67,-316), Chunk: (at 13,4,4 in 32,-20; contains blocks 512,0,-320 to 527,255,-305), Region: (1,-1; contains chunks 32,-32 to 63,-1, blocks 512,0,-512 to 1023,255,-1)