Live Connection .pbix file Not Loading Measures

Hello, 

I have a .pbix file that holds a Live Connection to a Power BI Dataset. 

I have some customer-specific measures written in the .pbix. Those measures have stopped loading when I open the file. 

When I look at it in the Service, they are working appropriately.  When I download a copy of the .pbix file, they are missing. 

I'm hoping to know why my measures are gone and if I can get them back.