1 files changed, 2 insertions, 1 deletions
diff --git a/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Developer/Converters/JobProgressToPositionConverter.cs b/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Developer/Converters/JobProgressToPositionConverter.cs
index 4212c6908..93ede05c3 100644
--- a/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Developer/Converters/JobProgressToPositionConverter.cs
+++ b/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Developer/Converters/JobProgressToPositionConverter.cs
@@ -4,6 +4,7 @@ using System.Globalization;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using System.Windows;
 using System.Windows.Data;
 using Tango.BL.Entities;
 
@@ -15,7 +16,7 @@ namespace Tango.MachineStudio.Developer.Converters
         {
             try
             {
-                if (values.Length == 3)
+                if (values.Length == 3 && values[1] != DependencyProperty.UnsetValue)
                 {
                     double length = System.Convert.ToDouble(values[0]);
                     double progress = System.Convert.ToDouble(values[1]);