Export to Native problem

Hi all,

I am exporting my OR elements to native and am losing my mx string label whenever I manipulate the element, ie. the string label field goes blank but model field is correct. If I manually reenter it's previous label it updates perfectly but resets to blank when manipulated again.

Is there something I'm missing? If I set the feature to auto export it works fine but I'd prefer to manually control exports to native.

I'm using MX SS4 build 878.