Umbra.9405

Hi, I have a problem in the same area. I have missed the raven lens achievement in the 'Silence' instance, but finished it all the same. Now I am stuck in the continuation because I do not have the achievement where I need it, but cannot restart the 'Silence instance. You can only 'redo' the episode (and all the instances) once it is finished. So I cannot finish and cannot restart. I am therefore effectively completely stuck in the story with this character. Anyone knows a solution?