diff --git a/src/PLUGIN-INF/metadata_DnxMoveFileOriginalPathDublettesClean.xml b/src/PLUGIN-INF/metadata_DnxMoveFileOriginalPathDublettesClean.xml
index cef8f5eff02fb19b13c49249ffe539fccdef9ac0..eb676deec71d59bd9f2bd4fbd96716e7377c69bc 100644
--- a/src/PLUGIN-INF/metadata_DnxMoveFileOriginalPathDublettesClean.xml
+++ b/src/PLUGIN-INF/metadata_DnxMoveFileOriginalPathDublettesClean.xml
@@ -74,7 +74,7 @@
 	</fr:x_form>
   </pl:initParameters>
   <pl:description>repairs broken file original paths with dublettes, see <a href="https://intranet.slub-dresden.de/display/LZA/Umgang+mit+Updates+auf+alte+Kitodo-AIPs">https://intranet.slub-dresden.de/display/LZA/Umgang+mit+Updates+auf+alte+Kitodo-AIPs</a></pl:description>
-  <pl:version>1.6</pl:version>
+  <pl:version>1.7</pl:version>
   <pl:materialType>DIGITAL</pl:materialType>
   <pl:module>Repository</pl:module>
   <pl:generalType>TASK</pl:generalType>
diff --git a/src/org/slub/rosetta/plugins/repositoryTask/DnxMoveFileOriginalPathDublettesClean.java b/src/org/slub/rosetta/plugins/repositoryTask/DnxMoveFileOriginalPathDublettesClean.java
index 312da5cccbb91f0ce17ce5fb7bdd471f1a2a32d4..6fdc42c5c902910bc7d623603b0c08572ef60173 100644
--- a/src/org/slub/rosetta/plugins/repositoryTask/DnxMoveFileOriginalPathDublettesClean.java
+++ b/src/org/slub/rosetta/plugins/repositoryTask/DnxMoveFileOriginalPathDublettesClean.java
@@ -299,6 +299,10 @@ public class DnxMoveFileOriginalPathDublettesClean implements RepositoryTaskPlug
                 }
                 // compare the two dates, if current has an update-candidate with newer modification date, throw an exception
                 if (currentModificationDate.before( updatedFileModificationDate )) {
+				log.warn("update needed for IE " + ieEditor.getIEPid() + " RepPid " + repPid + " FilePid " + filePid
+                            + " (old file_original_path='" + currentFileOriginalPath + "' (modification date=" + currentModificationDate
+                            + ") to new file_original_path='" + updatedFileOriginalPath + "' (modification date=" + updatedFileModificationDate
+                            + " filepid=" + updatedFilePid + "), but new file_original_path already exists!");
                     throw new FileOriginalPathCollisionException(
                             "update needed for IE " + ieEditor.getIEPid() + " RepPid " + repPid + " FilePid " + filePid
                             + " (old file_original_path='" + currentFileOriginalPath + "' (modification date=" + currentModificationDate
@@ -307,8 +311,10 @@ public class DnxMoveFileOriginalPathDublettesClean implements RepositoryTaskPlug
                     );
                 }
                 // mark to delete old entry
+                log.info("mark to delete old entry for IEPID " + iePid);
                 this.IEPids.add(iePid);
                 this.RepPids.add(repPid);
+				log.info("added IEPID and REPPID for deletion");
                 DeleteUpdatedFilePid tmp = new DeleteUpdatedFilePid(iePid, repPid, updatedFilePid); // delete outdated filepid
                 this.filepids_to_delete.add( tmp );