title: Netbeans Preview GUI Not Matching Run
body: <p>I'm experimenting with Java (Swing) GUIs and have encountered an odd issue using Netbeans 8.2.  I jump between two computers (one Win7 and the other Win10) and made several modifications on the application on the Win7 machine.  When I moved the application back to my Win10 machine, the preview shows the old interface while the run command shows the now modified interface.</p>
  
  <p>I've seen several posts talking about refreshing the GUI (both manually and automatically) and have deleted the cache multiple time from \AppData\Local\Netbeans...  I've also tried clean build and open/close the project.</p>
  
  <p>Anyone else have any suggestions on what I'm missing?</p>