Is there an existing issue for this?
Expected Behavior
To run the next run without having to close and reopen matlab
Current Behavior
Matlab complains and I need to close and reopen it
Error message
Matlab throws this error (apologies for the picture but it is cross computers)

Environment
- OS: windows 10 pro
- Matlab: 2015b
Branch
- branch: (HEAD detached at 627ceef)
- version: v2.1.2dev (from txt file)
Anything else?
No response