Simplify the following text for a Grade 10 native English-speaking person.
Original: By the time of the court-martial in August 1944 , the charges against Robinson had been reduced to two counts of insubordination ( going against someone in charge of him ) during questioning .
Simplified: By the time of the court-martial in August 1944 , the charges against Robinson had been reduced to two counts of insubordination during questioning .