Several item components that make up custom tools / weapons are broken and result in broken gameplay. Some form of update would be nice as these features haven't been spoken about in over a year now.

Update 1.19.0:

• Block Tags no longer work for creating mining tools, meaning each desired block has to be specified individually, as you can imagine with large packs this becomes very tiresome very quickly

Update 1.19.10:

• With the shooter component being fixed, we can now create bow items, these bows take durability damage when firing by default and as such unbreaking works as intended and the item doesn't duplicate on death, whatever this event is, perhaps Mojang can make it data driven and allow us to modify it when mining to fix some of these bugs?

Update 1.19.60:

• Some bugs have been fixed, the steps to reproduce has been updated with the remaining bugs

Steps To Reproduce:

• Download the attached 1.18_items.mcaddon and open a world with all experimental features (except game test) on and both behaviour and resource packs on.
• Go to the creative inventory and search for emerald then follow these steps for each item:
  • Any emerald tool
    • Mine a bunch of blocks with the default tool then mine the same amount with an unbreaking 3 enchanted tool
    • Observe that both tools have the same durability
  • Pickaxe
    • Get the pickaxe and mine some stone
    • Observe that it mines very slowly
      • Despite the pickaxe being told to mine blocks with the 'stone' tag, they ignore tags and only mine specified blocks.
    • Get the pickaxe and some crying obsidian
    • Go to survival and place the crying obsidian and try to mine it
    • While the crying obsidian will mine, it will not drop itself
    • Repeat the above with regular obsidian
    • Observe that obsidian will drop itself
    • Also note that efficiency will not mine blocks faster

Expected Results:

• All of the above issues don't occur and creators can make custom tools that work like vanilla tools

Observed Results:

• Several bugs break custom tools for survival usage