MM is working again:

-- Completely rebuild the CopyVI and CopyClass.VIs
-- Result is that it is not important anymore if a class with the same name is already in memory or was deleted before
-- The progress bar is set to 0 once you press the "Build" button

_CSPP_MessageMaker/CSPP_Actor/CS++Actor.lvclass

@@ -254,13 +254,13 @@
 				<Property Name="NI.ClassItem.State" Type="Int">1342972432</Property>
 			</Item>
 			<Item Name="CopyVI.vi" Type="VI" URL="../CopyVI.vi">
-				<Property Name="NI.ClassItem.ConnectorPane" Type="Bin">&amp;!#!!!!!!!)!"1!&amp;!!!-!%!!!@````]!!!!"!!%!!!$H!!!!#1!-1#%'=X2B&gt;(6T!!!,1!-!"'.P:'5!!""!-0````]'=W^V=G.F!!!71&amp;!!!Q!!!!%!!AFF=H*P=C"P&gt;81!"!!!!#"!5!!$!!!!!1!#%W6S=G^S)'FO)#BO&lt;S"F=H*P=CE!&amp;%!S`````QJ&amp;&lt;8"U?3"';7RF!!!71$,`````$%:J&lt;'5A&gt;']A1W^Q?1!!6!$Q!!Q!!Q!%!!1!"!!%!!1!"!!%!!5!"!!'!!=$!!"Y!!!.#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!A!!!!!!!!!#!!!!!A!!!!!!1!)!!!!!!</Property>
+				<Property Name="NI.ClassItem.ConnectorPane" Type="Bin">&amp;!#!!!!!!!)!"1!&amp;!!!-!%!!!@````]!!!!"!!%!!!%2!!!!#A!-1#%'=X2B&gt;(6T!!!,1!-!"'.P:'5!!""!-0````]'=W^V=G.F!!!71&amp;!!!Q!!!!%!!AFF=H*P=C"P&gt;81!"!!!!#"!5!!$!!!!!1!#%W6S=G^S)'FO)#BO&lt;S"F=H*P=CE!+E"Q!!A!!!!"!!!&gt;98"Q&lt;'FD982J&lt;WYA=G6G:8*F&lt;G.F)#BM&lt;W.B&lt;#E!&amp;%!S`````QJ&amp;&lt;8"U?3"';7RF!!!71$,`````$%:J&lt;'5A&gt;']A1W^Q?1!!6!$Q!!Q!!Q!%!!1!"!!%!!1!"!!%!!5!"A!(!!A$!!"Y!!!.#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!I!!!!)!!!!#!!!!!A!!!!!!1!*!!!!!!</Property>
 				<Property Name="NI.ClassItem.ExecutionSystem" Type="Int">-1</Property>
 				<Property Name="NI.ClassItem.Flags" Type="Int">0</Property>
 				<Property Name="NI.ClassItem.IsStaticMethod" Type="Bool">true</Property>
 				<Property Name="NI.ClassItem.MethodScope" Type="UInt">2</Property>
 				<Property Name="NI.ClassItem.Priority" Type="Int">1</Property>
-				<Property Name="NI.ClassItem.State" Type="Int">1342710288</Property>
+				<Property Name="NI.ClassItem.State" Type="Int">1082143248</Property>
 			</Item>
 		</Item>
 		<Item Name="CalculateMsgClassPath.vi" Type="VI" URL="../CalculateMsgClassPath.vi">

_CSPP_MessageMaker/CSPP_MessageMaker.lvproj

@@ -78,6 +78,7 @@
 				<Item Name="Format Message String.vi" Type="VI" URL="/&lt;vilib&gt;/Utility/error.llb/Format Message String.vi"/>
 				<Item Name="General Error Handler Core CORE.vi" Type="VI" URL="/&lt;vilib&gt;/Utility/error.llb/General Error Handler Core CORE.vi"/>
 				<Item Name="General Error Handler.vi" Type="VI" URL="/&lt;vilib&gt;/Utility/error.llb/General Error Handler.vi"/>
+				<Item Name="Get GObject Label.vi" Type="VI" URL="/&lt;vilib&gt;/Utility/traverseref.llb/Get GObject Label.vi"/>
 				<Item Name="Get Image Subset.vi" Type="VI" URL="/&lt;vilib&gt;/picture/pictutil.llb/Get Image Subset.vi"/>
 				<Item Name="Get String Text Bounds.vi" Type="VI" URL="/&lt;vilib&gt;/Utility/error.llb/Get String Text Bounds.vi"/>
 				<Item Name="Get Text Rect.vi" Type="VI" URL="/&lt;vilib&gt;/picture/picture.llb/Get Text Rect.vi"/>
@@ -125,6 +126,7 @@
 				<Item Name="TagReturnType.ctl" Type="VI" URL="/&lt;vilib&gt;/Utility/error.llb/TagReturnType.ctl"/>
 				<Item Name="Three Button Dialog CORE.vi" Type="VI" URL="/&lt;vilib&gt;/Utility/error.llb/Three Button Dialog CORE.vi"/>
 				<Item Name="Three Button Dialog.vi" Type="VI" URL="/&lt;vilib&gt;/Utility/error.llb/Three Button Dialog.vi"/>
+				<Item Name="TRef Find Object By Label.vi" Type="VI" URL="/&lt;vilib&gt;/Utility/traverseref.llb/TRef Find Object By Label.vi"/>
 				<Item Name="TRef Traverse.vi" Type="VI" URL="/&lt;vilib&gt;/Utility/traverseref.llb/TRef Traverse.vi"/>
 				<Item Name="TRef TravTarget.ctl" Type="VI" URL="/&lt;vilib&gt;/Utility/traverseref.llb/TRef TravTarget.ctl"/>
 				<Item Name="Trim Whitespace.vi" Type="VI" URL="/&lt;vilib&gt;/Utility/error.llb/Trim Whitespace.vi"/>