grass dont growth

What is /gamerule randomTickSpeed set to?

randomTickSpeed is on the default setting (3)

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if a player join, the grass will growth up

but if no player in loaded chunks sheeps can eat grass but it cannot grow back

maybe a problem with randomticks if no player in loaded chunks (like the spawnarea)

What Minecraft server software package is the box running?

i use atm paper and we discuss this problem here https://github.com/PaperMC/Paper/issues/2414

i now mojang do not support paper, we just want to find out what's changed since 1.13 (the start of this issue)

Can this be reproduced in unmodified, vanilla Minecraft?

Minecraft intentionally will not tick chunks that are ~128 blocks away from a player, however, an entity can tick as long as its in an entity ticking chunk. This is why this occurs.

yes this should also be reproducible in vanilla

Can confirm in 1.17 vanilla minecraft