diff --git a/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/CustomRegExpFakeInspection.java b/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/CustomRegExpFakeInspection.java
index 433644567dd3..deed1cb35983 100644
--- a/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/CustomRegExpFakeInspection.java
+++ b/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/CustomRegExpFakeInspection.java
@@ -1,4 +1,4 @@
-// Copyright 2000-2022 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+// Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package org.intellij.lang.regexp.inspection.custom;
 
 import com.intellij.codeInsight.daemon.HighlightDisplayKey;
@@ -181,7 +181,7 @@ public class CustomRegExpFakeInspection extends LocalInspectionTool {
     Collections.swap(patterns, index, newIndex);
     model.fireContentsChanged(list);
     list.setSelectedIndex(newIndex);
-    //saveChangesToProfile(list);
+    saveChangesToProfile(list);
   }
 
   private void performAdd(JList<InspectionPattern> list, @NotNull AnActionButton b) {
@@ -194,8 +194,8 @@ public class CustomRegExpFakeInspection extends LocalInspectionTool {
 
   private void performRemove(JList<InspectionPattern> list) {
     final List<InspectionPattern> patterns = myConfiguration.getPatterns();
-    for (InspectionPattern configuration : list.getSelectedValuesList()) {
-      patterns.remove(configuration);
+    for (InspectionPattern pattern : list.getSelectedValuesList()) {
+      myConfiguration.removePattern(pattern);
     }
     final int size = patterns.size();
     final int maxIndex = list.getMaxSelectionIndex();
@@ -278,9 +278,8 @@ public class CustomRegExpFakeInspection extends LocalInspectionTool {
       final RegExpDialog dialog = new RegExpDialog(project, true, defaultPattern);
       if (!dialog.showAndGet()) return;
 
-      final InspectionPattern configuration = dialog.getPattern();
-      final List<InspectionPattern> patterns = myConfiguration.getPatterns();
-      patterns.add(configuration);
+      final InspectionPattern pattern = dialog.getPattern();
+      myConfiguration.addPattern(pattern);
       ((MyListModel)myList.getModel()).fireContentsChanged(myList);
       saveChangesToProfile(myList);
     }
@@ -300,14 +299,5 @@ public class CustomRegExpFakeInspection extends LocalInspectionTool {
     public void fireContentsChanged(Object source) {
       fireContentsChanged(source, -1, -1);
     }
-
-    public void swap(int first, int second) {
-      if (second == -1) return;
-      final List<InspectionPattern> patterns = myConfiguration.getPatterns();
-      final InspectionPattern one = patterns.get(first);
-      final InspectionPattern two = patterns.get(second);
-      patterns.set(second, one);
-      patterns.set(first, two);
-    }
   }
 }
diff --git a/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/CustomRegExpInspection.java b/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/CustomRegExpInspection.java
index b84036a6e12d..260a2390a193 100644
--- a/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/CustomRegExpInspection.java
+++ b/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/CustomRegExpInspection.java
@@ -187,7 +187,9 @@ public class CustomRegExpInspection extends LocalInspectionTool implements Dynam
   }
 
   public void addConfiguration(RegExpInspectionConfiguration configuration) {
-    myConfigurations.add(configuration);
+    if (!myConfigurations.contains(configuration)) {
+      myConfigurations.add(configuration);
+    }
   }
 
   public void updateConfiguration(RegExpInspectionConfiguration configuration) {
diff --git a/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/MetaDataDialog.java b/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/MetaDataDialog.java
index 5444c350da41..5d7310df5683 100644
--- a/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/MetaDataDialog.java
+++ b/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/MetaDataDialog.java
@@ -1,4 +1,4 @@
-// Copyright 2000-2022 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+// Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package org.intellij.lang.regexp.inspection.custom;
 
 import com.intellij.codeInsight.daemon.HighlightDisplayKey;
@@ -109,10 +109,10 @@ public class MetaDataDialog extends DialogWrapper {
   protected void doOKAction() {
     super.doOKAction();
     if (getOKAction().isEnabled()) {
-      myConfiguration.name = getName();
-      myConfiguration.description = getDescription();
-      myConfiguration.suppressId = getSuppressId();
-      myConfiguration.problemDescriptor = getProblemDescriptor();
+      myConfiguration.setName(getName());
+      myConfiguration.setDescription(getDescription());
+      myConfiguration.setSuppressId(getSuppressId());
+      myConfiguration.setProblemDescriptor(getProblemDescriptor());
     }
   }
 
diff --git a/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/RegExpInspectionConfiguration.java b/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/RegExpInspectionConfiguration.java
index dd637b6fffbf..733ded0f404e 100644
--- a/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/RegExpInspectionConfiguration.java
+++ b/RegExpSupport/src/org/intellij/lang/regexp/inspection/custom/RegExpInspectionConfiguration.java
@@ -1,4 +1,4 @@
-// Copyright 2000-2022 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+// Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package org.intellij.lang.regexp.inspection.custom;
 
 import com.intellij.find.FindModel;
@@ -20,21 +20,22 @@ import java.util.UUID;
  */
 public class RegExpInspectionConfiguration implements Comparable<RegExpInspectionConfiguration> {
 
-  public List<InspectionPattern> patterns;
-  public @NotNull String name;
-  public String description;
-  public String uuid;
-  public String suppressId;
-  public String problemDescriptor;
+  public List<InspectionPattern> patterns; // keep public for settings serialization
+  private String name;
+  private String description;
+  private String uuid;
+  private String suppressId;
+  private String problemDescriptor;
 
   public RegExpInspectionConfiguration(@NotNull String name) {
     this.name = name;
-    uuid = UUID.nameUUIDFromBytes(name.getBytes(StandardCharsets.UTF_8)).toString();
     patterns = new SmartList<>();
   }
 
   @SuppressWarnings("unused")
-  public RegExpInspectionConfiguration() {}
+  public RegExpInspectionConfiguration() {
+    patterns = new SmartList<>();
+  }
 
   public RegExpInspectionConfiguration(RegExpInspectionConfiguration other) {
     patterns = new SmartList<>(other.patterns);
@@ -51,12 +52,12 @@ public class RegExpInspectionConfiguration implements Comparable<RegExpInspectio
     if (o == null || getClass() != o.getClass()) return false;
 
     RegExpInspectionConfiguration that = (RegExpInspectionConfiguration)o;
-    return uuid.equals(that.uuid);
+    return Objects.equals(uuid, that.uuid);
   }
 
   @Override
   public int hashCode() {
-    return getUuid().hashCode();
+    return name.hashCode();
   }
 
   public RegExpInspectionConfiguration copy() {
@@ -67,30 +68,78 @@ public class RegExpInspectionConfiguration implements Comparable<RegExpInspectio
     return patterns;
   }
 
-  public @NlsSafe @NotNull String getName() {
+  public void addPattern(InspectionPattern pattern) {
+    if (!patterns.contains(pattern)) {
+      patterns.add(pattern);
+    }
+  }
+
+  public void removePattern(InspectionPattern pattern) {
+    patterns.remove(pattern);
+  }
+
+  public @NlsSafe String getName() {
     return name;
   }
 
+  public void setName(@NotNull String name) {
+    if (uuid == null && this.name != null) { // name can be null on deserializing from settings
+      uuid = UUID.nameUUIDFromBytes(this.name.getBytes(StandardCharsets.UTF_8)).toString();
+    }
+    this.name = name;
+  }
+
   public @NlsSafe String getDescription() {
     return description;
   }
 
+  public void setDescription(String description) {
+    this.description = description;
+  }
+
   public String getUuid() {
+    if (uuid == null && name != null) { // name can be null on deserializing from settings
+      uuid = UUID.nameUUIDFromBytes(this.name.getBytes(StandardCharsets.UTF_8)).toString();
+    }
     return uuid;
   }
 
+  public void setUuid(@Nullable String uuid) {
+    this.uuid = uuid;
+  }
+
   public @NlsSafe String getSuppressId() {
     return suppressId;
   }
 
+  public void setSuppressId(String suppressId) {
+    this.suppressId = suppressId;
+  }
+
   public @NlsSafe String getProblemDescriptor() {
     return problemDescriptor;
   }
 
+  public void setProblemDescriptor(String problemDescriptor) {
+    this.problemDescriptor = problemDescriptor;
+  }
+
   @Override
   public int compareTo(@NotNull RegExpInspectionConfiguration o) {
     int result = name.compareToIgnoreCase(o.name);
-    if (result == 0) result = uuid.compareTo(o.uuid);
+    if (result == 0) {
+      if (uuid == null) {
+        if (o.uuid != null) {
+          result = -1;
+        }
+      }
+      else if (o.uuid == null) {
+        result = 1;
+      }
+      else {
+        result = uuid.compareTo(o.uuid);
+      }
+    }
     return result;
   }
 
diff --git a/platform/structuralsearch/source/com/intellij/structuralsearch/inspection/StructuralSearchProfileActionProvider.java b/platform/structuralsearch/source/com/intellij/structuralsearch/inspection/StructuralSearchProfileActionProvider.java
index 38811b5b89c0..b71f760a5dbb 100644
--- a/platform/structuralsearch/source/com/intellij/structuralsearch/inspection/StructuralSearchProfileActionProvider.java
+++ b/platform/structuralsearch/source/com/intellij/structuralsearch/inspection/StructuralSearchProfileActionProvider.java
@@ -142,12 +142,13 @@ public class StructuralSearchProfileActionProvider extends InspectionProfileActi
       final InspectionProfileModifiableModel profile = myPanel.getProfile();
       final CustomRegExpInspection inspection = InspectionProfileUtil.getCustomRegExpInspection(profile);
       final RegExpInspectionConfiguration configuration = new RegExpInspectionConfiguration("new inspection");
-      configuration.patterns.add(pattern);
+      configuration.addPattern(pattern);
       final Project project = e.getData(CommonDataKeys.PROJECT);
       if (project == null) return;
       final MetaDataDialog metaDataDialog = new MetaDataDialog(project, inspection, configuration, true);
       if (!metaDataDialog.showAndGet()) return;
 
+      configuration.setUuid(null);
       inspection.addConfiguration(configuration);
       CustomRegExpInspection.addInspectionToProfile(project, profile, configuration);
       profile.setModified(true);