SNAP plugin for our hd5 - q_vv exception

I developed SNAP plugin for our hd5 format
and I can’t open the q-band it give the below exception, however we converted our image to TerraSarX format and imported it to SNAP,
BOTH files from our plugin and the TerraSarX have same AbstAbstracted_Metadata, Tie-Point Grids
Also i_VV open correctly and identical but q_VV give below exception:

java.lang.NullPointerException
at com.sun.media.jai.util.SunCachedTile.(SunCachedTile.java:80)
at com.sun.media.jai.util.SunTileCache.add(SunTileCache.java:257)
at javax.media.jai.OpImage.addTileToCache(OpImage.java:1087)
at javax.media.jai.OpImage.getTile(OpImage.java:1142)
at org.esa.snap.core.datamodel.StxFactory.accumulateTile(StxFactory.java:339)
at org.esa.snap.core.datamodel.StxFactory.accumulate(StxFactory.java:323)
at org.esa.snap.core.datamodel.StxFactory.accumulate(StxFactory.java:296)
at org.esa.snap.core.datamodel.StxFactory.create(StxFactory.java:200)
at org.esa.snap.core.datamodel.StxFactory.create(StxFactory.java:274)
at org.esa.snap.core.datamodel.RasterDataNode.computeStxImpl(RasterDataNode.java:2453)
at org.esa.snap.core.datamodel.Band.computeStxImpl(Band.java:504)
at org.esa.snap.core.datamodel.RasterDataNode.getStx(RasterDataNode.java:2420)
at org.esa.snap.core.datamodel.RasterDataNode.createDefaultImageInfo(RasterDataNode.java:1827)
at org.esa.snap.core.datamodel.Band.createDefaultImageInfo(Band.java:483)
at org.esa.snap.core.datamodel.RasterDataNode.getImageInfo(RasterDataNode.java:1809)
at org.esa.snap.core.datamodel.RasterDataNode.getImageInfo(RasterDataNode.java:1792)
at org.esa.snap.core.image.ImageManager.prepareImageInfos(ImageManager.java:834)
at org.esa.snap.core.image.ColoredBandImageMultiLevelSource.create(ColoredBandImageMultiLevelSource.java:51)
at org.esa.snap.core.image.ColoredBandImageMultiLevelSource.create(ColoredBandImageMultiLevelSource.java:47)
at org.esa.snap.core.image.ColoredBandImageMultiLevelSource.create(ColoredBandImageMultiLevelSource.java:41)
at org.esa.snap.ui.product.ProductSceneImage.(ProductSceneImage.java:69)
at org.esa.snap.rcp.actions.window.OpenImageViewAction.createProductSceneImage(OpenImageViewAction.java:271)
at org.esa.snap.rcp.actions.window.OpenImageViewAction.access$100(OpenImageViewAction.java:69)
at org.esa.snap.rcp.actions.window.OpenImageViewAction$1.doInBackground(OpenImageViewAction.java:236)
at org.esa.snap.rcp.actions.window.OpenImageViewAction$1.doInBackground(OpenImageViewAction.java:213)
at com.bc.ceres.swing.progress.ProgressMonitorSwingWorker.doInBackground(ProgressMonitorSwingWorker.java:55)
at javax.swing.SwingWorker$1.call(SwingWorker.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at javax.swing.SwingWorker.run(SwingWorker.java:334)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused: java.util.concurrent.ExecutionException
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at javax.swing.SwingWorker.get(SwingWorker.java:602)
[catch] at org.esa.snap.rcp.actions.window.OpenImageViewAction$1.done(OpenImageViewAction.java:221)
at javax.swing.SwingWorker$5.run(SwingWorker.java:737)
at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.run(SwingWorker.java:832)
at sun.swing.AccumulativeRunnable.run(AccumulativeRunnable.java:112)
at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(SwingWorker.java:842)
at javax.swing.Timer.fireActionPerformed(Timer.java:313)
at javax.swing.Timer$DoPostEvent.run(Timer.java:245)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

@lveci @kraftek any ideas what could be going wrong?