Problem happens when getting into a minecart. The player will sit WAY to low it and therefor can't see anything.
Steps to reproduce:
1. Put down some track (It happens mostly when the cart is angled)
2. Put down the minecart.
3. Get in.
Simple fix hopefully.
Environment
OS: Windows 8.1
Java: latest x64 java version (java 7)
CPU: Intel i5 (duel-core)
GPU: Intel HD Graphics 4000
Dupe of MC-19331