From a correspondent:
Just before the 5pm scheduled start of Die Frau Ohne Schatten the Staatsoper announced that Nina Stemme was unable to perform (fallen ill at short notice) as the Dyer’s wife.
They tracked down Miina-Liisa Värelä, a recent Isolde, and flew her in from Finland. She was due to arrive at Munich airport at 6.10pm. A police escort drove her into Munich. The start of the opera was rescheduled for 7pm.