draw.io Insert row to table not working

I try to create a table in draw.io desktop version, after filling content of a few row then I realize that I need to add more row at the bottom. So I double click the table and the right hand side menu change to a more specific menu for table editing.

Then I click the "Insert row after" button (the one in red in the image below).

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For some reasons, it only insert a single cell to the table.

Note: I've tried to press other button, none of it solve my problem, it just make thing worse.