Update:
After a few more tests, I have discovered that the bug does not affect offline consoles, and is only in effect when you are connected to the Internet. I believe this means the game is flooded with Marketplace content when a second player joins and they immediately crash out b/c of the overflow.
Biggest issue is with shield, because it's just so big. __ It's a little discouraging to use it with trident because it blinds you.
This is not a bug. If you mine with Silk Touch a block that drops its resource even without the right tool, (i.e. Grass Block, Melon, Glass, Leaves) the Silk Touch will still work.
The Sugar Cane will immediately break once it receives a block update (i.e. grows taller or place/break a block adjacent to it)