Today I used a Yongnuo YN622C-TX with a Canon 7D and spotted some strange behavior. When the transmitter was on and I was shooting in A mode, the shutter speed was set to 1/250, as expected.
I turned off the transmitter, but the shutter speed was still 1/250, as if it was still powered on.
I repeated this several times, tried to reset the transmitter several times, but without any success. Any ideas?