diff --git a/Core/src/org/sleuthkit/autopsy/casemodule/services/Bundle.properties b/Core/src/org/sleuthkit/autopsy/casemodule/services/Bundle.properties
index 5242f90667..b267fde0a2 100644
--- a/Core/src/org/sleuthkit/autopsy/casemodule/services/Bundle.properties
+++ b/Core/src/org/sleuthkit/autopsy/casemodule/services/Bundle.properties
@@ -14,4 +14,8 @@ FileManager.addLocalDirInt2.exception.closed.msg=Attempted to use FileManager af
 TagsManager.addContentTag.exception.beginByteOffsetOOR.msg=beginByteOffset \= {0} out of content size range (0 - {1})
 TagsManager.addContentTag.exception.endByteOffsetOOR.msg=endByteOffset \= {0} out of content size range (0 - {1})
 TagsManager.addContentTag.exception.endLTbegin.msg=endByteOffset < beginByteOffset
-TagsManager.predefTagNames.bookmark.text=Bookmark
\ No newline at end of file
+TagsManager.predefTagNames.bookmark.text=Bookmark
+TagsManager.addContentTag.noCaseWarning=Failed to add publish new content tag event.  There is no case open.
+TagsManager.deleteContentTag.noCaseWarning=Failed to add publish content tag deleted event.  There is no case open.
+TagsManager.addBlackboardArtifactTag.noCaseWarning=Failed to add publish new blackboard artifact tag event.  There is no case open.
+TagsManager.deleteBlackboardArtifactTag.noCaseWarning=Failed to add publish blackboard artifact tag deleted event.  There is no case open.
diff --git a/Core/src/org/sleuthkit/autopsy/casemodule/services/TagsManager.java b/Core/src/org/sleuthkit/autopsy/casemodule/services/TagsManager.java
index 72fdf22ca4..f94976b572 100755
--- a/Core/src/org/sleuthkit/autopsy/casemodule/services/TagsManager.java
+++ b/Core/src/org/sleuthkit/autopsy/casemodule/services/TagsManager.java
@@ -248,7 +248,11 @@ public class TagsManager implements Closeable {
             }
         }
         final ContentTag newContentTag = tskCase.addContentTag(content, tagName, comment, beginByteOffset, endByteOffset);
-        Case.getCurrentCase().notifyContentTagAdded(newContentTag);
+        try {
+            Case.getCurrentCase().notifyContentTagAdded(newContentTag);
+        } catch (IllegalArgumentException ex) {
+            Logger.getLogger(TagsManager.class.getName()).log(Level.WARNING, NbBundle.getMessage(TagsManager.class, "TagsManager.addContentTag.noCaseWarning"));
+        }
         return newContentTag;
     }
 
@@ -266,7 +270,11 @@ public class TagsManager implements Closeable {
         }
 
         tskCase.deleteContentTag(tag);
-        Case.getCurrentCase().notifyContentTagDeleted(tag);
+        try {
+            Case.getCurrentCase().notifyContentTagDeleted(tag);
+        } catch (IllegalArgumentException e) {
+            Logger.getLogger(TagsManager.class.getName()).log(Level.WARNING, NbBundle.getMessage(TagsManager.class, "TagsManager.deleteContentTag.noCaseWarning"));
+        }
     }
 
     /**
@@ -375,7 +383,11 @@ public class TagsManager implements Closeable {
         }
 
         BlackboardArtifactTag addBlackboardArtifactTag = tskCase.addBlackboardArtifactTag(artifact, tagName, comment);
-        Case.getCurrentCase().notifyBlackBoardArtifactTagAdded(addBlackboardArtifactTag);
+        try {
+            Case.getCurrentCase().notifyBlackBoardArtifactTagAdded(addBlackboardArtifactTag);
+        } catch (IllegalArgumentException e) {
+            Logger.getLogger(TagsManager.class.getName()).log(Level.WARNING, NbBundle.getMessage(TagsManager.class, "TagsManager.addBlackboardArtifactTag.noCaseWarning"));
+        }
         return addBlackboardArtifactTag;
     }
 
@@ -394,7 +406,11 @@ public class TagsManager implements Closeable {
 
         Case.getPropertyChangeSupport().firePropertyChange(Case.Events.BLACKBOARD_ARTIFACT_TAG_DELETED.toString(), tag, null);
         tskCase.deleteBlackboardArtifactTag(tag);
-        Case.getCurrentCase().notifyBlackBoardArtifactTagDeleted(tag);
+        try {
+            Case.getCurrentCase().notifyBlackBoardArtifactTagDeleted(tag);
+        } catch (IllegalArgumentException e) {
+            Logger.getLogger(TagsManager.class.getName()).log(Level.WARNING, NbBundle.getMessage(TagsManager.class, "TagsManager.deleteBlackboardArtifactTag.noCaseWarning"));
+        }
     }
 
     /**