ok, so i was on the ILS to runway 15 at Birmingham, england.
i was in the default A321, i had the visibility down to 1/2 a mile.
i was about 16nm out according to the DME. i was going in fully automated, and then, for no reason, at about 10nm out, the plane went into a 40 degree nose up attitude.
i took off autopilot, then put her level again with about 6nm to go.
i got at the correct altitude, and direction, then turned it on again, only to find that it does the same thing again.
what the heck happened?