Put the summary of the bug you're having here

What I expected to happen was...

What actually happened was...:
chunks didnt load even after i reloaded them they only loaded after i placed or broke a block and even after this only 1 chunk appeared i had to do this everytime to see new chunks it happened in optifine and in the release too

Steps to Reproduce:
1. i dont know how to make that bug happen
2. ...
3. ...