diff --git a/lib/pangea/analytics_data/analytics_data_service.dart b/lib/pangea/analytics_data/analytics_data_service.dart
index 6fec64bca..d8cae3cef 100644
--- a/lib/pangea/analytics_data/analytics_data_service.dart
+++ b/lib/pangea/analytics_data/analytics_data_service.dart
@@ -352,8 +352,7 @@ class AnalyticsDataService {
       final existing = cleaned[canonical];
       if (existing != null) {
         existing.merge(entry);
-      } else if (!blocked.contains(canonical) &&
-          canonical.category != 'other') {
+      } else if (!blocked.contains(canonical) && !canonical.isInvalid) {
         cleaned[canonical] = entry;
       }
     }
diff --git a/lib/pangea/analytics_details_popup/vocab_analytics_list_view.dart b/lib/pangea/analytics_details_popup/vocab_analytics_list_view.dart
index 73ec8ccd5..91b5b5be0 100644
--- a/lib/pangea/analytics_details_popup/vocab_analytics_list_view.dart
+++ b/lib/pangea/analytics_details_popup/vocab_analytics_list_view.dart
@@ -33,7 +33,7 @@ class VocabAnalyticsListView extends StatelessWidget {
       controller.vocab?.where(_vocabFilter).sorted(_sortBySearch).toList();
 
   bool _vocabFilter(ConstructUses use) =>
-      use.lemma.isNotEmpty && _levelFilter(use) && _searchFilter(use);
+      _levelFilter(use) && _searchFilter(use);
 
   bool _levelFilter(ConstructUses use) {
     if (controller.selectedConstructLevel == null) {
diff --git a/lib/pangea/constructs/construct_identifier.dart b/lib/pangea/constructs/construct_identifier.dart
index e95b482b5..b372493ac 100644
--- a/lib/pangea/constructs/construct_identifier.dart
+++ b/lib/pangea/constructs/construct_identifier.dart
@@ -194,5 +194,6 @@ class ConstructIdentifier {
       (type == ConstructTypeEnum.morph &&
           MorphFeaturesEnumExtension.fromString(category) ==
               MorphFeaturesEnum.Unknown) ||
-      category == 'other';
+      category == 'other' ||
+      lemma.isEmpty;
 }