Split button animation/icon problem

Sometimes the icon of the button does not reflect the correct state. 
 
Steps to reproduce: 

• Modify some file and do not save
• Try to run a project: Default or Run Preview
• You see “Save changes” dialog
• Press Cancel

Actual: Button image animation all the time  
 
Expected: Button image gets back to the green one  
 
Another way to reproduce:
 

• Modify some file and do not save
• Try to run a project: Default or Run Preview
• You see “Save changes” dialog
• Press Diff all and cancel
• Close diff document