diff --git a/dependency-reduced-pom.xml b/dependency-reduced-pom.xml
index 24b67836..73fb08dd 100644
--- a/dependency-reduced-pom.xml
+++ b/dependency-reduced-pom.xml
@@ -4,7 +4,7 @@
   <groupId>org.pamguard</groupId>
   <artifactId>Pamguard</artifactId>
   <name>Pamguard Java12+</name>
-  <version>2.02.10a</version>
+  <version>2.02.10b</version>
   <description>Pamguard for Java 12+, using Maven to control dependcies</description>
   <url>www.pamguard.org</url>
   <organization>
diff --git a/pom.xml b/pom.xml
index 791baced..1cc20d52 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.pamguard</groupId>
   <artifactId>Pamguard</artifactId>
-  <version>2.02.10a</version>
+  <version>2.02.10b</version>
   <name>Pamguard Java12+</name>
   <description>Pamguard for Java 12+, using Maven to control dependcies</description>
 	<url>www.pamguard.org</url>
@@ -748,7 +748,7 @@
 		<dependency>
 			<groupId>net.sf.ucanaccess</groupId>
 			<artifactId>ucanaccess</artifactId>
-			<version>4.0.4</version>
+			<version>5.0.1</version>
 		</dependency>
 
 		<!-- https://mvnrepository.com/artifact/nz.ac.waikato.cms.weka/weka-dev -->
diff --git a/src/PamController/PamguardVersionInfo.java b/src/PamController/PamguardVersionInfo.java
index cb03138a..31805815 100644
--- a/src/PamController/PamguardVersionInfo.java
+++ b/src/PamController/PamguardVersionInfo.java
@@ -31,7 +31,7 @@ public class PamguardVersionInfo {
 	 * Version number, major version.minorversion.sub-release.
 	 * Note: can't go higher than sub-release 'f'
 	 */
-	static public final String version = "2.02.10a";
+	static public final String version = "2.02.10b";
 	
 	/**
 	 * Release date
diff --git a/src/PamguardMVC/dataSelector/CompoundParams.java b/src/PamguardMVC/dataSelector/CompoundParams.java
index d63f1957..6f80972e 100644
--- a/src/PamguardMVC/dataSelector/CompoundParams.java
+++ b/src/PamguardMVC/dataSelector/CompoundParams.java
@@ -19,4 +19,10 @@ public class CompoundParams extends DataSelectParams {
 	public DataSelectParams getSelectorParams(DataSelector dataSelector) {
 		return selectorParams.get(dataSelector.getLongSelectorName());
 	}
+
+	@Override
+	public int getCombinationFlag() {
+		return DATA_SELECT_AND;
+	}
+	
 }
diff --git a/src/PamguardMVC/dataSelector/DataSelectorCreator.java b/src/PamguardMVC/dataSelector/DataSelectorCreator.java
index 77e199b5..56ebbf4b 100644
--- a/src/PamguardMVC/dataSelector/DataSelectorCreator.java
+++ b/src/PamguardMVC/dataSelector/DataSelectorCreator.java
@@ -200,7 +200,13 @@ public abstract class DataSelectorCreator implements PamSettings {
 			return allSelectors.get(0);
 		}
 		else {
-			return new CompoundDataSelector(pamDataBlock, allSelectors, selectorName, allowScores, selectorType);
+			CompoundDataSelector selector = new CompoundDataSelector(pamDataBlock, allSelectors, selectorName, allowScores, selectorType);
+			DataSelectParams params = dataSelectorSettings.getParams(selectorName);
+			if (params instanceof CompoundParams) {
+				selector.setParams(params);
+			}
+			
+			return selector;
 		}
 	}
 	
diff --git a/src/generalDatabase/lookupTables/LookUpTables.java b/src/generalDatabase/lookupTables/LookUpTables.java
index daea762f..bd095eba 100644
--- a/src/generalDatabase/lookupTables/LookUpTables.java
+++ b/src/generalDatabase/lookupTables/LookUpTables.java
@@ -3,10 +3,13 @@ package generalDatabase.lookupTables;
 import java.awt.Color;
 import java.awt.Window;
 import java.sql.Connection;
+import java.sql.ResultSet;
 import java.sql.SQLException;
+import java.sql.Statement;
 import java.sql.Types;
 import java.util.ArrayList;
 import java.util.ListIterator;
+import java.util.Vector;
 
 import PamController.PamController;
 import PamView.dialog.warn.WarnOnce;
@@ -101,9 +104,101 @@ public class LookUpTables {
 		checkedTableConnection = null;
 		if (dbControlUnit.getDbProcess().checkTable(lutTableDef)) {
 			checkedTableConnection = con;
-			return true;
 		}
-		return false;
+		
+		checkTableRepeats(con, lutTableDef);
+		
+		return checkedTableConnection != null;
+	}
+
+	/**
+	 * for some reason some repeats have got into the LUT and need to be removed
+	 * or it really messes stuff up. So check it automatically. 
+	 * @param con
+	 * @param lutTableDef2
+	 */
+	private boolean checkTableRepeats(PamConnection con, EmptyTableDefinition lutTableDef) {
+		/*
+		 * first get a list of unique topics, then check them one at a time. 
+		 */
+		ArrayList<String> topics = getTopicList(con, lutTableDef);
+		if (topics == null) {
+			return false;
+		}
+		
+		for (String topic : topics) {
+			checkTopicRepeats(con, lutTableDef, topic);
+		}
+		return true;
+	}
+	
+	private void checkTopicRepeats(PamConnection con, EmptyTableDefinition lutTableDef2, String topic) {
+		LookupList lutList = getLookupList(topic);
+		Vector<LookupItem> list = lutList.getList();
+		int n = list.size();
+		boolean[] isRepeat = new boolean[n];
+		int nRepeat = 0;
+		// search for repeats.
+		for (int i = 0; i < n-1; i++) {
+			String code = list.get(i).getCode().trim();
+			for (int j = i+1; j < n; j++) {
+				String code2 = list.get(j).getCode().trim();
+				if (code.equals(code2)) {
+					isRepeat[j] = true;
+					nRepeat++;
+				}
+			}
+		}
+		if (nRepeat == 0) {
+			return;
+		}
+		// make a clause to delete the repeats. 
+		String sql = null;
+		for (int i = 0; i < n; i++) {
+			if (isRepeat[i] == false) {
+				continue;
+			}
+			if (sql == null) {
+				sql = String.format("DELETE FROM %s WHERE Id IN (%d", lutTableDef.getTableName(), list.get(i).getDatabaseId());
+			}
+			else {
+				sql = sql + String.format(",%d", list.get(i).getDatabaseId());
+			}
+		}
+		sql += ")";
+		boolean ok = false;
+		try {
+			Statement stmt = con.getConnection().createStatement();
+			ok = stmt.execute(sql);
+		} catch (SQLException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+	}
+
+	private ArrayList<String> getTopicList(PamConnection con, EmptyTableDefinition lutTableDef) {
+		if (con == null) {
+			return null;
+		}
+		ArrayList<String> topics = new ArrayList<>();
+		String qStr = "SELECT DISTINCT Topic FROM  " + lutTableDef.getTableName();
+		try {
+			Statement stmt = con.getConnection().createStatement();
+			boolean ok = stmt.execute(qStr);
+			if (ok == false) {
+				return null;
+			}
+			ResultSet results = stmt.getResultSet();
+			while (results.next()) {
+				String topic = results.getString(1);
+				topics.add(topic);
+			}
+		} catch (SQLException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+			return null;
+		}
+		return topics;
 	}
 
 	public LookupList createLookupList(PamCursor resultSet, String topic) {
diff --git a/src/generalDatabase/ucanAccess/UCanAccessSystem.java b/src/generalDatabase/ucanAccess/UCanAccessSystem.java
index 8f754aac..3937cf17 100644
--- a/src/generalDatabase/ucanAccess/UCanAccessSystem.java
+++ b/src/generalDatabase/ucanAccess/UCanAccessSystem.java
@@ -153,7 +153,7 @@ public class UCanAccessSystem extends BaseAccessSystem implements PamSettings {
 			String conStr = "jdbc:ucanaccess://"
 					+ fl.getAbsolutePath() + passwordEntry+noMem;
 			System.out.println("UCanAccess connection string = " + conStr);
-			conn = DriverManager.getConnection(conStr);
+			conn = DriverManager.getConnection(conStr,"","");
 			conn.setAutoCommit(false);
 		} catch (Exception e) {
 			e.printStackTrace();
diff --git a/src/loggerForms/FormDescription.java b/src/loggerForms/FormDescription.java
index 95b204cb..a212b94d 100644
--- a/src/loggerForms/FormDescription.java
+++ b/src/loggerForms/FormDescription.java
@@ -1598,7 +1598,9 @@ public class FormDescription implements Cloneable, Comparable<FormDescription> {
 			normalForm.destroyForm();
 		}
 		if (hiddenForm != null) {
-			normalForm.destroyForm();
+			if (normalForm != null) {
+				normalForm.destroyForm();
+			}
 		}
 		if (subtabForms != null) {
 			for (LoggerForm aForm:subtabForms) {
diff --git a/src/loggerForms/LoggerForm.java b/src/loggerForms/LoggerForm.java
index 58215478..b31ae9a8 100644
--- a/src/loggerForms/LoggerForm.java
+++ b/src/loggerForms/LoggerForm.java
@@ -21,6 +21,7 @@ import javax.swing.BoxLayout;
 import javax.swing.JButton;
 import javax.swing.JComponent;
 import javax.swing.JOptionPane;
+import javax.swing.JPanel;
 import javax.swing.JRootPane;
 import javax.swing.JScrollPane;
 import javax.swing.Timer;
@@ -529,7 +530,10 @@ public class LoggerForm{
 				innerCenterPanel.add(currentRow);
 				currentRow = new LoggerFormPanel(this, new FlowLayout(FlowLayout.LEFT));
 			}else{
-				currentRow.add(c.makeComponent(this));
+				JPanel component = c.makeComponent(this);
+				if (component != null) {
+					currentRow.add(component);
+				}
 			}
 
 		}