All animals, that i kept for years! That are named, or not, that are on the lead or in the boat, or even chickens in the small 1*1 chichen meat farm are missing, All my tamed dogs, and cats nowhere to be seen. All pandas form jungles all foxes from taiga..... tamed baby foxes, skeleton leashed horses, and so on.... -bees seems to be fine, i was working with them at that moment high, next to build limit. Came back down and saw it -all gone. 
This happened on 2022-01-01. I have finished game as normal, had some friends connected, here in my house with other controler- NOT multiplayer. Disconected, and whent on youtube on same xbox, without swiching it off. Came back later and saw that animals are missing, others spawning, like random cows or sheeps...  Even horses that had armour, and was in closed place like 5*5 blocks are gone. I did not see villagers yet. I have a backup. Is it save, to save a copy of a copy, without opening it? If any information is needed, please ask.