This looks to be an issue with Geotools and not correctly loading the ImageIO libraries. This was fixed previously in MAE-1233, but only for Linux. This appears to be a windows problem as well, possibly fixed with an upgrade to geotools.

Stacktrace:

1315 - [edu.illinois.ncsa.ergo.gis.geotools.ui.builders.MapPaneBuilder]: Could not restore 2d renderer state
java.lang.NoClassDefFoundError: Could not initialize class javax.imageio.ImageIO
at edu.illinois.ncsa.ergo.gis.geotools.ui.internal.MapPaneRenderer.getDrawingWaitImg(MapPaneRenderer.java:321)
at edu.illinois.ncsa.ergo.gis.geotools.ui.internal.MapPaneRenderer.showDrawingWait(MapPaneRenderer.java:307)
at edu.illinois.ncsa.ergo.gis.geotools.ui.internal.MapPaneRenderer.setMapArea(MapPaneRenderer.java:221)
at edu.illinois.ncsa.ergo.gis.geotools.ui.builders.MapPaneBuilder.setRendererState(MapPaneBuilder.java:485)
at edu.illinois.ncsa.ergo.gis.geotools.ui.builders.MapPaneBuilder.restoreScenarioRendererState(MapPaneBuilder.java:501)
at edu.illinois.ncsa.ergo.gis.ui.views.RendererView.setRendererBuilder(RendererView.java:114)
at edu.illinois.ncsa.ergo.gis.ui.tasks.RenderScenarioTask$ScenarioRenderer$1.run(RenderScenarioTask.java:144)