After flying for a certain amount of time the autopilot will go wonky and stop following the flight directors.
This happens with FSUIPC 4.3 (not the one provided by CS which kills the 757 autopilot) with squawkbox on or off, with activesky on or off, with FSPax on or off, in all situations and circumstances. It seems to occur when the arrivals page is updated in the FMC. Whenever I program in a new STAR in the air, or even just change the arrival runway, the autopilot dies. Vertical modes work ok, but NO lateral mode works at all (HDG Hold, HDG select, LNAV, LOC, VOR). The airplane just decides to bank in a direction and will continue to bank in that direction.
The direction it's banking in appears to just be random. I'm a bit tired of having to fly the last 35 minutes of my flight by hand. I shot a CAT III ILS approach at EHAM the other day because my autopilot died on me.
Anybody else have this issue?