Solved! Go to Solution.
Thanks Robert for looking at this. I've had warnings pop up in my console about some of the esri classes I'm importing. Warnings such as:
The class com.esri.ags.geometry.MapPoint has been used in a call to net.registerClassAlias() in _ModRound2Form_FlexInit. This will cause Round2Form:ModRound2Form to be leaked. To resolve the leak, define com.esri.ags.geometry.MapPoint in the top-level application.