diff --git a/org.adempiere.base/src/org/compiere/model/MColumn.java b/org.adempiere.base/src/org/compiere/model/MColumn.java
index 8f7d2fae6e..869257a0cd 100644
--- a/org.adempiere.base/src/org/compiere/model/MColumn.java
+++ b/org.adempiere.base/src/org/compiere/model/MColumn.java
@@ -63,6 +63,7 @@ public class MColumn extends X_AD_Column
 	 * 	Get MColumn from Cache
 	 *	@param ctx context
 	 * 	@param AD_Column_ID id
+	 * 	@param trxName trx
 	 *	@return MColumn
 	 */
 	public static MColumn get(Properties ctx, int AD_Column_ID, String trxName)
@@ -807,11 +808,11 @@ public class MColumn extends X_AD_Column
 		if (DisplayType.TableDir == refid || (DisplayType.Search == refid && getAD_Reference_Value_ID() == 0)) {
 			foreignTable = getColumnName().substring(0, getColumnName().length()-3);
 		} else if (DisplayType.Table == refid || DisplayType.Search == refid) {
-			MReference ref = MReference.get(getCtx(), getAD_Reference_Value_ID());
+			MReference ref = MReference.get(getCtx(), getAD_Reference_Value_ID(), get_TrxName());
 			if (MReference.VALIDATIONTYPE_TableValidation.equals(ref.getValidationType())) {
 				int cnt = DB.getSQLValueEx(get_TrxName(), "SELECT COUNT(*) FROM AD_Ref_Table WHERE AD_Reference_ID=?", getAD_Reference_Value_ID());
 				if (cnt == 1) {
-					MRefTable rt = MRefTable.get(getCtx(), getAD_Reference_Value_ID());
+					MRefTable rt = MRefTable.get(getCtx(), getAD_Reference_Value_ID(), get_TrxName());
 					if (rt != null)
 						foreignTable = rt.getAD_Table().getTableName();
 				}
diff --git a/org.adempiere.base/src/org/compiere/model/MProcessPara.java b/org.adempiere.base/src/org/compiere/model/MProcessPara.java
index efcdfc111d..94ab2e5f39 100644
--- a/org.adempiere.base/src/org/compiere/model/MProcessPara.java
+++ b/org.adempiere.base/src/org/compiere/model/MProcessPara.java
@@ -297,9 +297,9 @@ public class MProcessPara extends X_AD_Process_Para
 			|| (DisplayType.Search == getAD_Reference_ID() && getAD_Reference_Value_ID() == 0)) {
 			foreignTable = getColumnName().substring(0, getColumnName().length()-3);
 		} else 	if (DisplayType.Table == getAD_Reference_ID() || DisplayType.Search == getAD_Reference_ID()) {
-			MReference ref = MReference.get(getCtx(), getAD_Reference_Value_ID());
+			MReference ref = MReference.get(getCtx(), getAD_Reference_Value_ID(), get_TrxName());
 			if (MReference.VALIDATIONTYPE_TableValidation.equals(ref.getValidationType())) {
-				MRefTable rt = MRefTable.get(getCtx(), getAD_Reference_Value_ID());
+				MRefTable rt = MRefTable.get(getCtx(), getAD_Reference_Value_ID(), get_TrxName());
 				if (rt != null)
 					foreignTable = rt.getAD_Table().getTableName();
 			}
diff --git a/org.adempiere.base/src/org/compiere/model/MRefTable.java b/org.adempiere.base/src/org/compiere/model/MRefTable.java
index 1350982c9b..595c8c80cb 100644
--- a/org.adempiere.base/src/org/compiere/model/MRefTable.java
+++ b/org.adempiere.base/src/org/compiere/model/MRefTable.java
@@ -27,7 +27,7 @@ public class MRefTable extends X_AD_Ref_Table
 	/**
 	 * 
 	 */
-	private static final long serialVersionUID = -699466856436251075L;
+	private static final long serialVersionUID = -3595900192339578282L;
 
 	/**
 	 * 	Standard Constructor
@@ -68,19 +68,27 @@ public class MRefTable extends X_AD_Ref_Table
 	/**	Ref Table Cache				*/
 	private static CCache<Integer,MRefTable>	s_cache = new CCache<Integer,MRefTable>(Table_Name, 20);
 
+	public static MRefTable get (Properties ctx, int AD_Reference_ID)
+	{
+		return get (ctx, AD_Reference_ID, null);
+	}
+
 	/**
 	 * 	Get from Cache
 	 *	@param ctx context
 	 *	@param AD_Reference_ID id
+	 *  @param trxName trx
 	 *	@return category
 	 */
-	public static MRefTable get (Properties ctx, int AD_Reference_ID)
+	public static MRefTable get (Properties ctx, int AD_Reference_ID, String trxName)
 	{
 		Integer ii = Integer.valueOf(AD_Reference_ID);
 		MRefTable retValue = (MRefTable)s_cache.get(ii);
-		if (retValue != null)
+		if (retValue != null) {
+			retValue.set_TrxName(trxName);
 			return retValue;
-		retValue = new MRefTable (ctx, AD_Reference_ID, null);
+		}
+		retValue = new MRefTable (ctx, AD_Reference_ID, trxName);
 		if (retValue.get_ID () != 0)
 			s_cache.put (AD_Reference_ID, retValue);
 		return retValue;
diff --git a/org.adempiere.base/src/org/compiere/model/MReference.java b/org.adempiere.base/src/org/compiere/model/MReference.java
index 372f8cc5ac..369a135cdd 100644
--- a/org.adempiere.base/src/org/compiere/model/MReference.java
+++ b/org.adempiere.base/src/org/compiere/model/MReference.java
@@ -33,7 +33,7 @@ public class MReference extends X_AD_Reference {
 	/**
 	 * 
 	 */
-	private static final long serialVersionUID = 119105464164520763L;
+	private static final long serialVersionUID = 343092563490562893L;
 
 	/**
 	 * 	Standard Constructor
@@ -61,19 +61,27 @@ public class MReference extends X_AD_Reference {
 	/**	Reference Cache				*/
 	private static CCache<Integer,MReference>	s_cache = new CCache<Integer,MReference>(Table_Name, 20);
 
+	public static MReference get (Properties ctx, int AD_Reference_ID)
+	{
+		return get(ctx, AD_Reference_ID, null);
+	}
+
 	/**
 	 * 	Get from Cache
 	 *	@param ctx context
 	 *	@param AD_Reference_ID id
+	 *	@param trxName trx
 	 *	@return category
 	 */
-	public static MReference get (Properties ctx, int AD_Reference_ID)
+	public static MReference get (Properties ctx, int AD_Reference_ID, String trxName)
 	{
 		Integer ii = Integer.valueOf(AD_Reference_ID);
 		MReference retValue = (MReference)s_cache.get(ii);
-		if (retValue != null)
+		if (retValue != null) {
+			retValue.set_TrxName(trxName);
 			return retValue;
-		retValue = new MReference (ctx, AD_Reference_ID, null);
+		}
+		retValue = new MReference (ctx, AD_Reference_ID, trxName);
 		if (retValue.get_ID () != 0)
 			s_cache.put (AD_Reference_ID, retValue);
 		return retValue;