Xbox one live version v1.2.11
If you take your horse in boat with you and go to another isle for example. If a monster spawn or is in water, your horse is with you in boat and you take your bow for kill monster. Instead of arrow go to the monster 5 meters in front of you it will kill your horse on your back !!! in the boat.
Linked issues
duplicates 1
Comments 2
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However, this issue has been closed as a Duplicate of MCPE-30299.
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It will work also with friends. If have a friend bottom you on boat and you shoot a mob with your bow it will make damage to your friend, bug also with a sword. Reaaly disapointing ! I think a happen beacause of hit box with big entity.