I'm probably being dense but when I go to format my drone's 256GB SD card, GoFly shows only my 32GB controller SD card and the 2GB internal storage - with the first option highlighted by default. The card in my drone (which is working fine) is nowhere to be seen. At first I thought I wouldn't be able to format the 256GB card but I found out by trial and error that hitting the Format button actually formatted the drone SD card and not the highlighted RC SD card. This isn't intuitive and seems to imply that I can't format the RC SD card while the drone is powered up. Is it the case that to format the RC SD card I must only power up the controller?