Spreadsheet is not focused on the cell after first click on them.

We have a form with a few tabs. One tab consist the zk spreadsheet.
The user clicks by the tab with the spreadsheet, then when this tab open, the user clicks by the cell on the spreadsheet (first time).

Expected Result
The user-clicked cell will receive focuse.

Actual result
The user-clicked cell is not focused. Instead of this the cell [0,0] is focused.

If the user clicks by the cell second time, the cell will receive focus.
When the user, after that, clicks by the other tab, had see this other tab, and then again clicks by the tab with the spreadsheet, and clicks by the other cell on the spreadsheet, this cell will not receive focuse again. At this time the last focused cell will receive focuse, instead the current clicked cell.