title: SSAS Tabular - Data in model, but grid blank
body: <p>Having an issue with my model, which has been working well previously.</p>
  
  <p>I'm currently using VS 2017 with SSDT.  Now though, when I load the model, and process, it processes 1M rows as expected, but then the data grid shows blank fields.  The rows are there, and when I select filter, the values show in the filter, but nothing on the actual data grid.</p>
  
  <p>With the data not showing in the grid, it is affecting my calculated columns, telling me it can't work with blank values.</p>
  
  <p>The compatibility level is 1400 and I'm deploying to an Azure Analysis Services server.</p>
  
  <p>Has anybody come across this before?</p>