diff --git a/src/main/java/org/gcube/dataanalysis/executor/nodes/algorithms/ICCATVPA.java b/src/main/java/org/gcube/dataanalysis/executor/nodes/algorithms/ICCATVPA.java
index cff3d87..466e24c 100644
--- a/src/main/java/org/gcube/dataanalysis/executor/nodes/algorithms/ICCATVPA.java
+++ b/src/main/java/org/gcube/dataanalysis/executor/nodes/algorithms/ICCATVPA.java
@@ -130,15 +130,17 @@ public class ICCATVPA extends ActorNode {
 	@Override
 	public StatisticalType getOutput() {
 		
-		File outfile = new File(config.getPersistencePath(),processOutput);
+		//File outfile = new File(config.getPersistencePath(),processOutput);
+		File outfile = new File(processOutput);
 		LinkedHashMap<String, StatisticalType> outputmap = new LinkedHashMap<String, StatisticalType>();
+		AnalysisLogger.getLogger().debug("ICCAT-VPA Output: "+outfile.getAbsolutePath()+" : "+outfile.exists());
 		
-		if (outfile.exists())
-			AnalysisLogger.getLogger().debug("ICCAT-VPA Output: "+outfile.getAbsolutePath()+" : "+outfile.exists());
-		else
-			AnalysisLogger.getLogger().debug("ICCAT-VPA Output file does not exist - returning a proxy");
+		if (!outfile.exists()){
+			AnalysisLogger.getLogger().debug("ICCAT-VPA Output file "+processOutput+" does not exist - returning null ");
+			return null;
+		}
 		
-		PrimitiveType o = new PrimitiveType(File.class.getName(), outfile, PrimitiveTypes.FILE, "ProcessedSpecies", "Output file with processed species");
+		PrimitiveType o = new PrimitiveType(File.class.getName(), outfile, PrimitiveTypes.FILE, "ProcessSummary", "Output file containing the process summary");
 		outputmap.put("Zip file containing the process output", o);
 	
 		PrimitiveType output = new PrimitiveType(HashMap.class.getName(), outputmap, PrimitiveTypes.MAP, "Results File", "Results File");
@@ -267,7 +269,20 @@ public class ICCATVPA extends ActorNode {
 			
 			AnalysisLogger.getLogger().debug("ICCAT-VPA - Downloading file "+processOutput);
 			StorageUtils.downloadFilefromStorage(config.getGcubeScope(), config.getParam("ServiceUserName"), config.getPersistencePath(), processOutput);
-			AnalysisLogger.getLogger().debug("ICCAT-VPA - Postprocess complete: output ready in "+processOutput);
+			File of = new File(config.getPersistencePath(),processOutput);
+			for (int i=0;i<3;i++){
+				if (of.exists())
+					break;
+				else
+					Thread.sleep(1000);
+			}
+			
+			if (of.exists()){
+				AnalysisLogger.getLogger().debug("ICCAT-VPA - Postprocess complete: output ready in "+of.getAbsolutePath());
+				processOutput=of.getAbsolutePath();
+			}
+			else
+				AnalysisLogger.getLogger().debug("ICCAT-VPA - Warning Postprocess error - output does not exist ! "+of.getAbsolutePath());
 			
 		} catch (Exception e) {
 			e.printStackTrace();