So i was exploring my Minecraft world on a server as I'm playing with a friend. and we came across 2 villagers that we never have explored and its new chunks that were loaded in. I got confused when i looked inside the chest as there was nothing in there, then i remembered there was another time something like this happened, i got confused so i took the seed and put it in a single-player word to see if it was the server that made it not spawn the loot same seed same village but on singer player word and the same thing, there was nothing in the chest i then thought maybe it was a corrupted seed so i loaded a new seed on single-player and located to the nearest village and again noting inside the chest. 

Video evidence (as i cant upload it on here) - https://youtu.be/dhzRuMvBWL0