The effort to include the first transmission is a common problem for Fusion. There is an opinion that the reason is in the massive gears of gears and high load on synchronizers. It is also sometimes possible to solve the problem of milk oil in the ICIE or to replace oil.
If the transmission refuses to turn on, release the clutch and squeeze it again. The transfer will turn on. It is also worth checking whether the clutch mat does not interfere with the pedal of the clutch (pedal may fall into the carpet).