Affects Version/s: 1.2.7
Fix Version/s: None
Put the summary of the bug you're having here
What I expected to happen was...:
Describe what you thought should happen here
What actually happened was...:
Describe what happened here
Steps to Reproduce:
1. Click on play button
2. Go in the "development console"
3. wait and see
4. when the charging bar is nearly empty a fatal error message appears.