I gave myself a bow via:

"/give @p minecraft:bow{Enchantments:[

,{id:"minecraft:looting",lvl:50},{id:"minecraft:knockback",lvl:9001},{id:"minecraft:punch",lvl:9001}]} 1"

Normally, on previous versions, the whatever I shoot should die instantly and I can continue playing.

Every time I shoot something with it, Minecraft freezes and I cannot do anything until I restart or it crashes.

I suspect Minecraft crashes because there is too much Punch.

Steps to Reproduce:
1. Use the command "/give @p minecraft:bow{Enchantments:[

,{id:"minecraft:looting",lvl:50},{id:"minecraft:knockback",lvl:9001},{id:"minecraft:punch",lvl:9001}]} 1"

2. Shoot and hit some mob