TUIButton in tableview header. Popup Menu not showing

[erndev]

I am using a a TUITableView, with one header and several cells.
The header view has a TuiButton with a menu. First time the table view is loaded, the button displays the menu.

But i found a problem whenever i reload the data. If i reload the data, the button won't display the menu any more.
Debugging, i can see that the mousedown is catched, and that the call to the popUpMenuPositioningItem function is done.
But no menu is shown.
If just after that i resize the window, even a little bit, and then i click again in the button, the menu shows just fine.

I've done another test displaying a popup menu when mousedown is detected in the header view of the table, and the same happens. I need to resize the window after "reloadData" in order to be able to show the popup menu.

[erndev]

Well, problem solved.
If someone else faces this problem, what was happening is that i was changing the button menu (which is in the table view header) after calling reloadData. If i set the menu in the datasource methods when the header view is requested, everything seems fine.