I have a tile entity that constantly is checking if a certain block is above it, and if so, it breaks it. The block however no longer does this after the world is closed, and reopened, and you must break and replace the block to make it function again. Am I stupid?

It's hard to help without seeing your code. Post it on Gist with syntax highlighting or post a link to your repository (e.g. GitHub, BitBucket).

Here's the code for my tile entity class. I honestly don't see why it wouldn't work https://gist.github.com/TheDoctorSoda/927b3943b458270447d2

No, that is the code for a single method of your tile entity class.

That's the only method in my class, but whatever, here's the full one https://gist.github.com/TheDoctorSoda/64ae68d20da74981e5db

 

Tile Entity is registered and works perfectly fine until I relog, and it doesn't work until I replace the block.

Nevermind I am a failure and apparently forgot to call my tile entity registry class in my main mod class