Put the summary of the bug you're having here
*What I expected to happen was...:*When it started raining I thought it wouldn't go through the ceiling like always
What actually happened was...:*No matter what block made the ceiling the rain effects went right through*
Steps to Reproduce:
1. I'm not sure because it seemed to just start out of nowhere.
2. ... I did recently transfer the world from a different hard drive
3. ...
Environment
Put your operating system (Windows 7, Windows XP, OSX) and Java version if you know it here
Duplicate of MC-179845 please follow the steps there to fix the issue.