on our server some horses just suddenly vanisht without any possible way of them escaping or dying, in the server logs i found errors like this on the exact times of them dissapearing:
[19:36:58] [Server thread/WARN]: Wrong location! (13, -15) should be (13, -10), abp['Horse'/4392012, l='Skynet', x=219,06, y=69,00, z=-232,78]
[19:36:58] [Server thread/WARN]: Wrong location! (13, -15) should be (13, -10), abp['Horse'/4392013, l='Skynet', x=219,99, y=69,00, z=-236,24]
[19:36:58]
[19:36:58]
[Server thread/WARN]: Fetching addPacket for removed entity
it doesnt seem to happen with horses only, it is happen at random with every type of mobs but as we have alot of those we never realy noticed
I am having the same issue. It has affected villagers, pigs, and cows. It seems to happen when a mob is stuck inside of a wall. I traveled to the locations of two errors I had seen, and the coords listed in the last part of the error (1='World', X=# Z=# Y=#) were inside of a block. I think it is happening when a mob glitches inside of a solid block. (The ones I investigated were stone and a log, both opaque).