Using 1.8.1 Vanilla
Create a flat world creative world
Spawn two wolves (with eggs)
Use leash and tie one to a fence post
Leave the other to roam freely
Travel > 16 chunks away
Return after a little while
Both wolves have gone and the leash will be on the floor.
WIthout instantly taming wolves there is no way to keep the around.
Boat desync still in 1.7.4, nearly 18 months of seeing this and its still not possible to use boats.
What do you need to know to fix this?
Using 1.8.1 Vanilla
Create a flat world creative world
Spawn two wolves (with eggs)
Use leash and tie one to a fence post
Leave the other to roam freely
Travel > 16 chunks away
Return after a little while
Both wolves have gone and the leash will be on the floor.
WIthout instantly taming wolves there is no way to keep the around.