Is collapsed node “Option Is Resolution” returning false? It returns false if “Selected Item” is not a string “WidthxHeight”. Comboboxes in unreal is a bit tricky, so this is the workaround here.
I also see a stipled line around your selected item, this is a part of unreals UMG focus system, but it does not work well in more complex menu setups.
If you activated it by accident, it might be causing the issue?
Go to WB_ClassicSettingsVideo and in UMG designer, select “ComboBoxResolutuions” widget and disable “Is Focusable”
For good measure, Disable “Is Focusable” on the button inside the combobox list too.
In folder Quality Menu -> HUD_UMG_Classic -> UtilWidgets open WB_ClassicResolutionCombobox
This button inside combobox list does not do anything, it is only to visually look like an item inside combobox is pressed.
This might be the source of your problems, since a button usually would steal the click event from the combobox list.
In the settings menu, I set the button click and touch method to “Precise Click” and “Precise Tap”. Anything else, and it does not work.
This allows the button to visually look like it is pressed, but it does not steal the pressed event from combobox list underneath it that makes the actual list selection.
Why does this work? I dont know, but I have used that technique since 4.7.
I have not tested out 4.17 preview yet, I know they changed UMG clipping. I will check if this broke the button/combobox interaction.