In object browser sometime names displays "WindowsForms10...." than Name and then test fails

Use NameMappingRefresh before performing an action on the object, it may resolve your issue example as given below

  NameMapping.Sys.Refresh()
  NameMapping.Sys.RefreshMappingInfo()
  aqUtils.Delay(500)

  object,Click()

  //or any other operation

small delay is required (or observed) to make it work smooth.

Also try the below settings

Options->Engines->Name Mapping->Update Name Mapping during test run

Make that check box enable (Checked)

Hope it may resolve your problem

I have added this code. this  problem happens occasionally   . i did n't this problem again. so i am not sure. Because earlier i used to refresh  object browser manually it did not solve problem. so let me check it for a while to see it happens or not.

I really appreciate the response. Thanks.

Devaki