Rapid gamepad input causes game to lose focus

Development Programming & Scripting
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1

Hello, I have a game menu for selecting skins made up of a bunch of UCommonButtonBase extending buttons in a horizontal box.
Navigation works and selecting buttons is performing the required actions just fine.

It’s been reported by our QA dept. that if you spam left/right whilst pressing the select button on the game pad, eventually, focus is lost from the game window and jumps to somewhere else causing the game to become unresponsive. If I then mouse click back on the game, I get focus back, but not navigation. I have to exit out of the menu then reenter to get navigation back.

I’m currently testing the game in a new PIE window, and when the issue manifests I can see the editor in the background being interacted with. There was a bug for this issue that was closed as ‘wont fix’, however this issue I’m experiencing is not restricted to PIE windows, but published builds for windows/xbox/ps5.

EDIT: It manifests differently on fullscreen builds, instead of focussing on another window, it just loses focus so navigation is impossible, but you can still exit the menu. You can then navigate on the previous menu.

Does anyone know what might cause this and how to stop it? PC is easy enough to get past by clicking back on the game window, but consoles do not have this luxury, which leaves them soft locked.

2

I have an update to this, it appears that when scrolling left/right and the selection reaches an item that is outside of the viewable scrollbox area, pressing the gamepad to select it actually “Presses” the area where the middle of the ‘offscreen’ button is, therefore clicking either the editor window or just having the scrollbox lose focus, making gamepad input impossible.

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See the above image, items 1, 2 and 3 are visible, item 4 is not. If you scroll right using a gamepad and press the select button at the same time the offscreen item is selected, it’ll “press” where the red X is with a ‘virtual mouse’ and the scrollbox loses focus.

Are there any ideas how to stop it selecting whilst it’s not viewable? I tried switching the scrollbox to a Common Hierarchical Scroll Box to see if that helped.