checklist problem

[The_Gongoozler]

I was able to complete the FAM mission no problem but when i go to mission 1 the jester checklist doesn't advance past the taxi fuel check. I did everything the same as before but it wont advance no matter how many times i restart the mission.

[Reflected]

What external tanks are you carrying and how is your external transfer switch set?

[The_Gongoozler]

I might be stupid. I forgot to enable that. thanks man.