Bug Matlab R2020A - App Designer Dropdown in a panel doesn't change position (see comment)

I wanted to create an app which makes visible some forms or the other according to the switch position. These dropdowns are always visible, but changing their positions

But I have a problem: when I toggle switch for the first time - two of them don't change position

I change their ".Position" property in a switch callback like this

 app.DdS0Model.Position=[611,10,90,22];
 app.DdW0Model.Position=[611,6,90,22];
 app.DdtoxModel.Position=[611,10,90,22];

It only works properly, when I debug, or toggle switch twice

[Anastasia Eltsova]

I found out that it is somehow connected to the changing titles of panels. I've made a small app with this bug, and it is repeatable.

I made one switch and a dropdown inside a panel (the panel is inside a grid layout):

Callback of the switch:

 % Value changed function: Switch
        function SwitchValueChanged(app, event)
            value = app.Switch.Value;
            if(value=="Up")
                app.DropDown.Position=[248,393,100,22];
                app.PanelWithName.Title="PanelWithName";
            else
                app.DropDown.Position=[238,168,100,22];
                app.PanelWithName.Title='';
            end
        end
    end

And when I toggle switch for the first time app doesn't change position of dropdown

You can find this small app on github:

    https://github.com/eltsovaad/AppDesignerBugWithPanels