I remember that flight: the "Revolt Of The Astronauts".
Mission Control had them jumping through so many hoops and monkey-tasks that the crew totally shut down and refused to follow anything not on the flight plan.
All three were banished from flight status and never flew in space again.
Good remember, Old Sarge.
They had some motion sickness, and all 3 had colds (that Schirra brought along), that probably added to their ‘testiness’.
That said, Schirra didn’t suffer fools gladly, and didn’t take ‘no’ for an answer. He insisted on having the old Mercury & Gemini McDonnell Pad Chief on his Apollo launch (new contractor North American had provided a new guy for Apollo I), so NA hired him. And he remained for all the rest of the Apollo launches.
Schirra had announced his retirement before the launch, but Eisele and Cunningham were effectively banned.
Schirra was the first American to go into space 3 times, and the only one to fly in Mercury/Gemini/Apollo.