✅ Transparent flyout items

In my app, my flyout items are invisible, but if I manipulate my app, change the Windows size, I can see everything

First time, I enter the app, I check the storage, to see if there is an email, if there is, I will send you to your specific role page.

On this page you will have several options in the flyout depending on your role

1) Student
2) Teacher
3) Coordinator

If you do not have an account, you need to register, and I will save your email (In order to get back your user from firebase)

Problem

When you have an email stored and run the app, the app will show all the items, but they are transparent (But they are there)

And If I resize the Windows, they appear again (See the images below)

Expectation

I want to be able to see all my items.

The curious part is that when you create an account and login, all the items are visible.

Code

https://paste.mod.gg/lkbibdxylfml/0
https://paste.mod.gg/lkbibdxylfml/1
https://paste.mod.gg/lkbibdxylfml/2
https://paste.mod.gg/lkbibdxylfml/3
https://paste.mod.gg/lkbibdxylfml/4
https://paste.mod.gg/lkbibdxylfml/5

The code running, without me manipulating the screen (Resize, maximize, etc)

!image

as you can see, my items are there, but I do not see them.

The code running, with me manipulating the screen (Resize, maximize, etc)

!image

but for some reason if I turn on "Tabs", I cann the all my options