Solved: The line
%RealityCaptureExe% -delegateTo * -calculateNormalModel -calculateVertexColors -exportSelectedModel %workingDir%Models\Model_%rowNumber%_%columnNumber%_%floorNumber%.las %workingDir%\exportLas.xml
Was changed to
%RealityCaptureExe% -delegateTo * -calculateNormalModel -calculateVertexColors -exportSelectedModel %RootFolder%Models\Model_%rowNum%_%columnNum%_%zNum%.las %RootFolder%\exportLAS.xml
Works fine now