I am trying to populate grid with result from a!queryEntity. Data loads with one

I am trying to populate grid with result from a!queryEntity. Data loads with one column sorted as mentioned in a!sortInfo. However, sort after clicking on grid column headers is not working. Clicking on header shows arrow and it doesn't throw any kind of error. I have attached the test code for this.

Any help is really appreciated.

Thanks!

QueryEntityGrid.txt

OriginalPostID-144870

OriginalPostID-144870