Crashing after 10 minutes of playing since the 1.9 update.

Put the summary of the bug you're having here
Ever since the 1.9 update I have been crashing after about 10 minutes of playing.
What I expected to happen was...:
Describe what you thought should happen here
I thought that I should just be able to play for as long as I wanted.
What actually happened was...:
Describe what happened here
I just kept in crashing after about 10 minutes.
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...