diff --git a/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/EventLogController.java b/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/EventLogController.java
index 62c1d57e3f..9f8dd85fc5 100644
--- a/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/EventLogController.java
+++ b/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/EventLogController.java
@@ -4,11 +4,17 @@
 
 package net.sourceforge.pmd.util.fxdesigner;
 
+import static net.sourceforge.pmd.util.fxdesigner.model.LogEntry.Category.PARSE_EXCEPTION;
+import static net.sourceforge.pmd.util.fxdesigner.model.LogEntry.Category.PARSE_OK;
+import static net.sourceforge.pmd.util.fxdesigner.model.LogEntry.Category.XPATH_EVALUATION_EXCEPTION;
+import static net.sourceforge.pmd.util.fxdesigner.model.LogEntry.Category.XPATH_OK;
+
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.time.Duration;
 import java.util.Collections;
 import java.util.Date;
+import java.util.EnumSet;
 import java.util.List;
 import java.util.Objects;
 
@@ -88,16 +94,21 @@ public class EventLogController extends AbstractController {
         });
 
         EventStream<LogEntry> onlyParseException = designerRoot.getLogger().getLog()
-                                                               .filter(x -> x.getCategory() == Category.PARSE_EXCEPTION)
-                                                               .successionEnds(PARSE_EXCEPTION_DELAY);
+                                                               .filter(x -> x.getCategory() == PARSE_EXCEPTION || x.getCategory() == PARSE_OK)
+                                                               .successionEnds(PARSE_EXCEPTION_DELAY)
+                                                               // don't output anything when the last state recorded was OK
+                                                               .filter(x -> x.getCategory() != PARSE_OK);
 
         EventStream<LogEntry> onlyXPathException = designerRoot.getLogger().getLog()
-                                                               .filter(x -> x.getCategory() == Category.XPATH_EVALUATION_EXCEPTION)
-                                                               .successionEnds(PARSE_EXCEPTION_DELAY);
+                                                               .filter(x -> x.getCategory() == XPATH_EVALUATION_EXCEPTION || x.getCategory() == XPATH_OK)
+                                                               .successionEnds(PARSE_EXCEPTION_DELAY)
+                                                               // don't output anything when the last state recorded was OK
+                                                               .filter(x -> x.getCategory() != XPATH_OK);
+
+        EnumSet<Category> otherExceptionSet = EnumSet.complementOf(EnumSet.of(PARSE_EXCEPTION, XPATH_EVALUATION_EXCEPTION, PARSE_OK, XPATH_OK));
 
         EventStream<LogEntry> otherExceptions = designerRoot.getLogger().getLog()
-                                                            .filter(x -> x.getCategory() != Category.PARSE_EXCEPTION)
-                                                            .filter(y -> y.getCategory() != Category.XPATH_EVALUATION_EXCEPTION);
+                                                            .filter(x -> otherExceptionSet.contains(x.getCategory()));
 
         EventStreams.merge(onlyParseException, otherExceptions, onlyXPathException)
                     .subscribe(t -> eventLogTableView.getItems().add(t));
diff --git a/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/XPathPanelController.java b/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/XPathPanelController.java
index 5aafaddeea..fdd40208da 100644
--- a/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/XPathPanelController.java
+++ b/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/XPathPanelController.java
@@ -256,6 +256,8 @@ public class XPathPanelController extends AbstractController {
             xpathResultListView.setItems(results.stream().map(parent::wrapNode).collect(Collectors.toCollection(LiveArrayList::new)));
             parent.highlightXPathResults(results);
             violationsTitledPane.setText("Matched nodes\t(" + results.size() + ")");
+            // Notify that everything went OK so we can avoid logging very recent exceptions
+            designerRoot.getLogger().logEvent(new LogEntry(null, Category.XPATH_OK));
         } catch (XPathEvaluationException e) {
             invalidateResults(true);
             designerRoot.getLogger().logEvent(new LogEntry(e, Category.XPATH_EVALUATION_EXCEPTION));
diff --git a/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/model/ASTManager.java b/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/model/ASTManager.java
index 29718e156d..5c260dceca 100644
--- a/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/model/ASTManager.java
+++ b/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/model/ASTManager.java
@@ -104,7 +104,7 @@ public class ASTManager {
         try {
             languageVersionHandler.getQualifiedNameResolutionFacade(classLoader).start(node);
         } catch (Exception e) {
-            designerRoot.getLogger().logEvent(new LogEntry(e, Category.QUALIFIED_NAME_RESOLUTION_EXCEPTION));
+            designerRoot.getLogger().logEvent(new LogEntry(e, Category.QNAME_RESOLUTION_EXCEPTION));
         }
 
         try {
@@ -116,6 +116,10 @@ public class ASTManager {
         compilationUnit.setValue(node);
         lastValidSource = source;
         lastLanguageVersion = getLanguageVersion();
+
+        // Notify that the parse went OK so we can avoid logging very recent exceptions
+        designerRoot.getLogger().logEvent(new LogEntry(null, Category.PARSE_OK));
+
         return getCompilationUnit();
     }
 
diff --git a/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/model/LogEntry.java b/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/model/LogEntry.java
index 7d129630bf..a70deda233 100644
--- a/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/model/LogEntry.java
+++ b/pmd-ui/src/main/java/net/sourceforge/pmd/util/fxdesigner/model/LogEntry.java
@@ -44,7 +44,7 @@ public class LogEntry {
 
 
     public String getStackTrace() {
-        return ExceptionUtils.getStackTrace(throwable);
+        return throwable == null ? "" : ExceptionUtils.getStackTrace(throwable);
     }
 
 
@@ -56,10 +56,15 @@ public class LogEntry {
     public enum Category {
         PARSE_EXCEPTION("Parse exception"),
         TYPERESOLUTION_EXCEPTION("Type resolution exception"),
-        QUALIFIED_NAME_RESOLUTION_EXCEPTION("Qualified name resolution exception"),
+        QNAME_RESOLUTION_EXCEPTION("Qualified name resolution exception"),
         SYMBOL_FACADE_EXCEPTION("Symbol façade exception"),
         XPATH_EVALUATION_EXCEPTION("XPath evaluation exception"),
-        OTHER("Other");
+        OTHER("Other"),
+
+        // These are "flag" categories that signal that previous exceptions
+        // thrown during code or XPath edition may be discarded as uninteresting
+        PARSE_OK("Parsing success"),
+        XPATH_OK("XPath evaluation success");
 
         public final String name;