Hello Everyone

When I speak to Metrdora Thelema, a dialogue sequence plays between her and the space marine. Afterward, she still has the exclamation mark, but I can no longer interact with her. As soon as I complete another mission and select her, the dialogue starts again from the beginning, as if it's stuck in a loop. However, nothing happens after the dialogue. Is there a way to cancel or reset the mission? Thank you for your help.