It looks like this map has some config entries what are found as a problem by NagVis
If you have the enterprise version you can try the 1.6 daily build. This includes a newer Nagvis version.
If this will not help I think only @LaMi can help 
It looks like this map has some config entries what are found as a problem by NagVis
If you have the enterprise version you can try the 1.6 daily build. This includes a newer Nagvis version.
If this will not help I think only @LaMi can help