Data disappears after repopening Modal

I have a Kendo grid appearing in a modal. The modal opens by clicking on a button that sets the state of a map region on a map, which passes a parameter to the kendo grid on which map region data to display. This works fine on the first opening of the modal. If I click on a different map region and click on the modal, the grid displays the data fine. However, if I close the grid and try to reopen the grid with the same data, Ex: Click on Modal with Region X selected. Close the modal. Reclick the open modal button. Now the grid displays no data.