Ground fault receptacle in main bath. Trip the reset, and it trips the GFCI breaker in main panel. Go and reset breaker in main panel, and main bath receptacle and lights are working.
I go to adjacent master bath, no power. Go back to main bath, and reset GFCI button which is supplying the master bath receptacle.The master bath receptacle is also GFCI type.
Not sure if this is really a defect.