you can only AcquireBSEImage after acquire bse

OTSIncAMeasureApp/5-OTSMeasureStatuImageFun/OTSMeasureStatusWindow.cs

@@ -1421,7 +1421,13 @@ namespace OTSMeasureApp
             }
             else
             {
-                contextMenuStrip1.Items[(int)MeasureStateMenuType.SampleParaLock].Enabled = true;
+                double iWDistance = 0;
+                double dMagni = 0;
+                m_MeasureAppForm.m_ProjParam.GetWorkingSampleSEMData(ref iWDistance, ref dMagni);
+                if (iWDistance != 0 && dMagni != 0)
+                {
+                    contextMenuStrip1.Items[(int)MeasureStateMenuType.SampleParaLock].Enabled = true;
+                }
             }
         }
         #endregion