I own a server which runs Minecraft 1.12.2. Today I and some of the server players noticed that in some random chunks no one can drop anything. The default drop key (Q) just doesn't do anything and if something actually drops it disappears instantly.
One of the players have a farm in one of these chunks and that causes annoying problems. Shearing sheeps drops no wool, killing animals drops nothing etc. This same player tried to drop the shears to me so we can check if admin rights will impact it anyhow, but the shears just disappeared. I was unable to drop anything after that.
The problem happens only in random chunks here and there, but I'd still like to know what causes it and if there's any fix for it.