Entities despawning when chunk gets unloaded

Basically when a mob for example a tamed wolf is in a chunk that is not always loaded like the spawn chunks, and you leave that chunk the mob despawns like hostile mobs spawning and despawning mechanics. Nametags also do not affect the entities despawning. Armour stands and Item Frames are also affected by this bug

Thanks
-Shoobydoobydoo