4.23: When "Use mouse for touch" is checked, the Left Mouse Btn event does not fire in controller

What the title says. Disabling “Use mouse for touch” makes this work again. What is weird is that I have a project in 4.22 in which I check “Use mouse for touch” but am still able to handle all events without a problem. My project in 4.23 has only a game mode with a controller where I subscribe to the Left Mouse Button event, there is nothing that could consume the event, no HUD no widget, nothing.

Any help would be appreciated.