Saw error message "There was an attempt to perform an action on a zero-sized window."

Hi,

Probably the properties taken for mapping the object are same as of some other object in the object tree. You can manually check the properties of your mapped object (link) in "NameMapping" tab and can add "VisibleOnScreen" prop to differentiate between the two. You can also change the parent obj to more specific obj before clicking your link.

Also you can try remapping that object and choose the properties manually.

I hope adding VisibleOnScreen property would help in this case.

Regards 

Osaid