Breaking blocks doesn't drop the block

When i break a block/plant/object, the game doesn't drop it. I first saw it when breaking Amethyst Cluster, it didn't drop Amethyst. Then a Creeper exploded next to me, and no block was in the hole to pick up. Then i said something was off when breaking sugar cane didn't drop sugar cane, so then i did the test with dirt, and the game wouldn't drop the dirt. I can do anything in the game except that, and the bug isn't in another world i created. I don't want to delete my current world as i spent quite some time getting god armour and tools and still didn't fought the dragon