diff --git a/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java b/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java
index b07f0167..9681b7dd 100644
--- a/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java
+++ b/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java
@@ -109,6 +109,7 @@ public class ViewerContainerFragment extends Fragment {
         if (this.hasCombined) {
             logger.debug("ViewerContainerFragment", "hasCombined: " + hasCombined);
             lacertaLibrary.getCombinedDocumentToxiList(documentId).thenAccept(combinedDocumentToxiList -> {
+                logger.debug("ViewerContainerFragment", "combinedDocumentToxiList: " + combinedDocumentToxiList.size());
                 for (ToxiDocumentModel toxiDocumentModel : combinedDocumentToxiList) {
                     viewerViewPagerAdapter
                             .addFragment(ViewerBodyFragment.newInstance(toxiDocumentModel.getChildDocumentId(), toxiDocumentModel.getTitleCache()),