Can't display uiprogressdlg in standalone exe

Hello,

I create an app with appdesigner (MATLAB 2018b), where I also use the uiprogressdlg in order to display the waiting bar as here (an example):

Fig = uifigure;
TEXT = uiprogressdlg(Fig,'Title','Waiting','Message','Reading...');

[...]

TEXT.Value = .10;
TEXT.Message = 'Import data';

[...]

TEXT.Value = .50;
TEXT.Message = 'Creating database';

[...]

TEXT.Value = 1;
TEXT.Message = 'Done';
pause(5)
close(Fig)

Since I have a MacOS, I cannot create an .exe file in order to use the app on Windows. Thus, I ask to a friend of mine who has Windows to create the standalone app for me. With firsts versions I display the waiting bar correctly.

Lately, the dialog box opens but no waiting bar and text is shown until the app ends.

Does anybody know the problem?

Thanks