Empty data while having results

[Asconoid]

Whenever I try to request data, I have results (label "Records" down below on the right displays the right amount of records found) but all columns are empty, including the column headers (should display technical name of the fields).
I tried to reload the metadata, change my connection, reopen XrmToolBox, but nothing seems to change.

Any idea about this issue ?

[Asconoid]

It seems that clicking the "Show All" button at the bottom of the screen is enough the display the data as needed !
Leaving this comment for anyone who has the same issue.