Object causing exception during test run

Hi all, 

 

I'm having an issue running a test where an object is continually causing an exception. 

 

The object can be found by clicking the "Highlight" option from the right click menu from the Namemapping tree. So appear no issues with the mapping.

I have added a waitproperty operation to the test ,to wait until the object exists, the exception still occurs on the object.

I have added a delay to the test to allow the object to load, the object still causes an exception.

I have added interactions  with other page objects on the same webpage to the test, before interacting with the required object,  object still causes an exception.

 

In the keyword test log, "Details", the only message I am getting is "Member not found"

 

Any ideas on this? is there a remedy for it?

Thanks