It would be helpful, if you can provide us the following information 
1. A sample of the MATLAB process 
- Open the Activity Monitor app, located in /Applications/Utilities
 - In the search bar, type MATLAB and select the result
 - Click the gear icon and select "Sample Process"
 - Save as a text file, preferably with .log extension
 
2. A screenshot of MATLAB when the unresponsive behavior occurs
3. Unified system logs if the issue is 100% reproducible 
- Reproduce the unexpected behavior
 - In Terminal, execute the command: log show --info --debug --last 10m
 - Save output as .log file
 
4. What third party apps you had open when the unexpected behavior occurred
