User form radio buttons loose their caption when displaying form

After changing the caption of a RadioGroupItem and saving, when I run the form it displays with no captions on the radio buttons. When I reopen the form designer I find that all the captions are blank as if I never changed them! 

 So here is my process; 

  -create radiogroup1, save;

  -create radiogroupitem0, save;

  -change caption of radiogroupitem0, save;

So at this point if I display the form (UserForms.launchPad.ShowModal();) all the radiogroupitems will have a blank caption on the displayed form and in the designer. Also if I close and repoen the project the captions will all have reset to blanks.

Any help is appreciated. I imagine its something simple but it driving me crazy!

Thank you.