After the German occupation of Paris in 1940, Jacques Rouché sought to re-open the Opéra and invited Lubin to return to sing Alceste. This was followed by performances of Fidelio and Der Rosenkavalier, and in 1941 she again sang Isolde, this time with the visiting company of the Staatsoper from Berlin under the direction of Herbert von Karajan.
Following the German occupation of Paris in 1940, Jacques Rouché attempted to revive the Opéra and invited Lubin to reappear on stage to perform Alceste. This was followed by performances of Fidelio and Der Rosenkavalier, and in 1941 she once more sang Isolde, this time with a visiting company from Berlin's Staatsoper under Herbert von Karajan's direction.