Error saving changes to an "Image" section of a new experiment which was created offline

Error saving changes to an "Image" section of a new experiment which was created offline

When getting the error:

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Error Saving Contents
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Sorry, the index "1" is out of range.

     To discard any changes and continue, click Yes.
     To back up any changes, make further changes or try to save again, click No.

Do you want to discard any changes made to experiment "XXXXXX" and continue?
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Yes   No  
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please press "No", and then just browse to another Notebook, or to another Experiment in the same Notebook. You should get the changes saved.
 
Alternatively, if you connect online then changes are getting saved on synchronization.