Summary:

When in a single player world with multiplayer turned off blocks when broken lag to the ground.

Steps to Reproduce:

1. Create world
2. Destroy block with hand

Observed Results:

When you destroy any block with your hand the block looks like it is lagging to the ground.

Expected Results:

Block to break and land on the ground

Notes:
I have tried many different methods found online to fix this issue, including turning off my internet. I have video of what is happening if needed.