Original: Grand Duchess Olga Alexandrovna was told that Vishnyakova's claim had been immediately investigated, but instead "they caught the young woman in bed with a Cossack of the Imperial Guard."
Simplified: Grand Duchess Olga Alexandrovna was told that they had made an investigation to see if what Vishnyakova said was true, but that "they caught the young woman in bed with a Cossack of the Imperial Guard."