Yes, they are in .zip format and yes IW3 is missing, as i described here S-1 Tops Split Error: Operation Exception. Index=size=0 - #4 by Unmanaged0292.
As i also described deleting the quicklook jpg image from the .zip file solved the problem with reading the IW3 product. It was the only difference to the zip files i downloaded from the old system. I did not ckeck all bytes from the tiff files though, but all the .xds and .xml are similar.
Unpacking the folder and reading the manifest.safe also worked.
This problem occurs with downloads from asf as well as from ecosystem.
Unfortunately the problem does not stop there. When i apply the calibration IW3 goes missing again. When i then apply deburst snap fails to create the image and has several processes running on 100% CPU for a while and says waiting thread received a null tile:
java.lang.RuntimeException: Waiting thread received a null tile.
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at org.esa.snap.core.datamodel.StxFactory.accumulateTile(StxFactory.java:351)
at org.esa.snap.core.datamodel.StxFactory.accumulate(StxFactory.java:335)
at org.esa.snap.core.datamodel.StxFactory.accumulate(StxFactory.java:297)
at org.esa.snap.core.datamodel.StxFactory.create(StxFactory.java:201)
at org.esa.snap.core.datamodel.StxFactory.create(StxFactory.java:275)
at org.esa.snap.core.datamodel.RasterDataNode.computeStxImpl(RasterDataNode.java:2468)
at org.esa.snap.core.datamodel.Band.computeStxImpl(Band.java:493)
at org.esa.snap.core.datamodel.RasterDataNode.getStx(RasterDataNode.java:2435)
at org.esa.snap.core.datamodel.RasterDataNode.createDefaultImageInfo(RasterDataNode.java:1839)
at org.esa.snap.core.datamodel.Band.createDefaultImageInfo(Band.java:472)
at org.esa.snap.core.datamodel.RasterDataNode.getImageInfo(RasterDataNode.java:1821)
at org.esa.snap.core.datamodel.RasterDataNode.getImageInfo(RasterDataNode.java:1804)
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.<init>(ProductSceneImage.java:74)
at org.esa.snap.rcp.actions.window.OpenImageViewAction.createProductSceneImage(OpenImageViewAction.java:274)
at org.esa.snap.rcp.actions.window.OpenImageViewAction.access$100(OpenImageViewAction.java:67)
at org.esa.snap.rcp.actions.window.OpenImageViewAction$1.doInBackground(OpenImageViewAction.java:241)
at org.esa.snap.rcp.actions.window.OpenImageViewAction$1.doInBackground(OpenImageViewAction.java:220)
at com.bc.ceres.swing.progress.ProgressMonitorSwingWorker.doInBackground(ProgressMonitorSwingWorker.java:56)
at javax.swing.SwingWorker$1.call(SwingWorker.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at javax.swing.SwingWorker.run(SwingWorker.java:334)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
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:228)
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:758)
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:74)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
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)
When i download Data from S3 i get IW3 after calibration and can open IW3 but after deburst it fails with either a null tile or data buffer:
java.lang.RuntimeException: Cannot construct DataBuffer.
at com.sun.media.jai.util.DataBufferUtils.constructDataBuffer(Unknown Source)
at com.sun.media.jai.util.DataBufferUtils.createDataBufferFloat(Unknown Source)
at javax.media.jai.ComponentSampleModelJAI.createDataBuffer(Unknown Source)
at javax.media.jai.RasterFactory.createWritableRaster(Unknown Source)
at javax.media.jai.PlanarImage.createWritableRaster(Unknown Source)
[catch] at javax.media.jai.SourcelessOpImage.computeTile(Unknown Source)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.cobbleFloat(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at com.bc.ceres.glevel.MultiLevelImage.getData(MultiLevelImage.java:64)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:449)
at org.esa.snap.core.gpf.internal.OperatorContext.getSourceTile(OperatorContext.java:435)
at org.esa.snap.core.gpf.Operator.getSourceTile(Operator.java:459)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileInOneSwathFloat(TOPSARDeburstOp.java:904)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileStack(TOPSARDeburstOp.java:811)
Caused: org.esa.snap.core.gpf.OperatorException: Cannot construct DataBuffer.
at org.esa.snap.engine_utilities.gpf.OperatorUtils.catchOperatorException(OperatorUtils.java:434)
at org.esa.s1tbx.sentinel1.gpf.TOPSARDeburstOp.computeTileStack(TOPSARDeburstOp.java:826)
at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeRect(OperatorImageTileStack.java:122)
[catch] at org.esa.snap.core.gpf.internal.OperatorImageTileStack.computeTile(OperatorImageTileStack.java:86)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at com.sun.media.jai.util.SunTileScheduler.compute(Unknown Source)
at com.sun.media.jai.util.TileJob.compute(Unknown Source)
at com.sun.media.jai.util.WorkerThread.run(Unknown Source)