Please do the following as soon as Starry Night starts up:
1. Go to File ----> Preferences ---> Shaders
2. Uncheck the option for "use shaders where available"
3. Quit Starry Night, and the restart.
4. Try the exercise, change the time.
Shaders doesn't do shit. Someone told me that and the shit still crashed on me. Every time I get ready to change something, this happens. Don't be making up false information saying it helps.
No I'm sorry. I never had shaders on on Starry Night when I encountered this problem and someone told me to turn shaders off, not fully understanding or aware of the problem.