Enable multi touch for Scene2d UI widgets?

I’m using scene2d for my on-screen controls. I have 3 buttons and each one has it’s own listener which sets the entities current action on touchUp and touchDown events. However when I hold one button and then press another, the button which is held no longer triggers the touchDown event until I release it and press it again. This leads me to believe that scene2d widgets or maybe InputListener doesn’t by default support multi touch. Am I right, and can I enable it somehow, or do I have to ditch scene2d?

Here’s my current code(it might contain syntax errors since I’ve converted this from Kotlin to make it easier to understand for those who don’t use Kotlin).

public class UiInputSystem extends EntitySystem {

    private ComponentMapper<InputComponent> inputComponentComponentMapper;
    private ComponentMapper<ActionComponent> actionComponentComponentMapper;

    private UiSystem uiSystem;

    private final Array<Entity> entities = new Array<Entity>(1);

    UiInputSystem() {
        super(Aspect.all(InputComponent,class, ActionComponent.class));
    }

    @Override
    protected void initialize() {
        uiSystem.buttons.get(Input.UI_BUTTON_LEFT.name).addListener(new InputListener() {
            @Override
            public void touchUp(InputEvent event, float x, float y, int pointer, int button) {
                for(entity : entities) { process(entity, null); }
            }

            @Override
            public boolean touchDown(InputEvent event, float x, float y, int pointer, int button){
                for(entity : entities) { process(entity, Input.UI_BUTTON_LEFT); }
                return true;
            }
        })
        uiSystem.buttons.get(Input.UI_BUTTON_RIGHT.name).addListener(new InputListener() {
            @Override
            public void touchUp(InputEvent event, float x, float y, int pointer, int button) {
                for(entity : entities) { process(entity, null); }
            }

            @Override
            public boolean touchDown(InputEvent event, float x, float y, int pointer, int button){
                for(entity : entities) { process(entity, Input.UI_BUTTON_RIGHT); }
                return true;
            }
        })
        uiSystem.buttons.get(Input.UI_BUTTON_JUMP.name).addListener(new InputListener() {
            @Override
            public void touchUp(InputEvent event, float x, float y, int pointer, int button) {
                for(entity : entities) { process(entity, null); }
            }

            @Override
            public boolean touchDown(InputEvent event, float x, float y, int pointer, int button){
                for(entity : entities) { process(entity, Input.UI_BUTTON_JUMP); }
                return true;
            }
        })
    }

    private void process(Entity entity, Input input) {
        InputComponent inputComponent = inputComponentComponentMapper.get(entity);
        ActionComponent actionComponent = actionComponentComponentMapper.get(entity);

        actionComponent.currentAction = inputComponent.inputActions.get(input) != null ? inputComponent.inputActions.get(input) : Action.DEFAULT;
    }

    @Override
    public void inserted(Entity e) {
        entities.add(e);
    }

    @Override
    public void removed(Entity e) {
        entities.removeValue(e, true);
    }

    @Override
    protected void processSystem() {}

}

uiSystem.buttons is a map of buttons which are initialized and added to the stage in the uiSystem. In the uiSystem the buttons only have a position, name and image associated to them.

UPDATE: I noticed that if I set the return value of touchDown on the jump button listener to return false then pressing jump doesn’t override/stop triggering the left/right buttons but then my character won’t stop jumping until i release the held left/right button.