If widget button is selected and i press tab, it selects the next button :(

I have my inventory that opens/closes when i press tab, but when i click on one of the slots and press tab to exit the inventory, it isnt exiting, but selecting the next button. How can i prevent it?

It is due to the navigation functionality for widgets, which you can only de-activate by completely disabling keyboard focus support all together. You could either listen to the OnPreviewKeyDown event or close the menu from the controller instead (using an input event).

I cant find this OnPreviewKeyDown

You can override the function in any UMG widget. I.e. go to the graph of an umg widget and click override in the left panel.

Ok, i found it, but what i need to do in that function, here is a widget

hello, do you solve this question?
Can you help me?
Thx!!!

Leaving this for other people that may be looking for the answer. it’s fairly easy to do in C++.

FNavigationConfig struct in the Slate application controls which keys are responsible for UI navigation.
To simply turn off tab navigation, follow the code below.

#include "Framework/Application/NavigationConfig.h"

#include "MyGameStateBase.h"

void AMyGameStateBase::BeginPlay()
{
	Super::BeginPlay();

	FSlateApplication::Get().GetNavigationConfig()->bTabNavigation = false;
}

You may also make Your own NavigationConfig by subclassing FNavigationConfig, if You want more control (like dynamically turning the nav on/off)