When you obtain items with an invalid tiledata using external editors [for example an arrow with the tiledata 99], your minecraft and the minecraft of the host of the world you're currently in crashes (the host only crashes if the item gets dropped / put into a player's inventory), (and every player gets kicked). This occurs when:
getting the item into your inventory
breaking a container which contains one
opening a container which contains one
selecting the item with your mainhand
trying to clear it using commands
Issues caused by external world editors are not bugs. If you can reproduce the issue in a vanilla environment please create a new ticket.