Disable the Pause function and test again. if it works then, add a delay before the pause node so the Widget has time to update. If it still doesn´t work then…you know that it´s not the PauseGame node that causes the issue 
Disable the Pause function and test again. if it works then, add a delay before the pause node so the Widget has time to update. If it still doesn´t work then…you know that it´s not the PauseGame node that causes the issue