Autopilot Climb/Descent issues

Hello, after the very last update this January I ran into an immediate almost flight-ending issues in both the Airbus A320 and the B747. What happens is that once I climb up to around FL30 I start noticing the climb rate decreases rapidly to around 250 FPM and once I’m at 32-34 thousand feet it comes to a dead stop and the aircraft levels out. I hit the switch again and again (enable intervention on the Boeing and selected altitude on Airbus respectively) but nothing. I try the vertical speed switch but it doesn’t budge, tried to press the hold altitude button to fool the system and then choose the desired altitude (normally being FL38) but it just won’t nudge, she sits there at 33-34 leveled out. And what is worse is the speed steadily drops very close to stall speed and the engine N1 strangely stays at 87% not sure about the Boeing’s engine numbers but it’s very strangely identical to the A320’s autopilot climb issue.

Is the simulator this buggy now with autopilot or am I cruising too high? If the latter is the case then why is the B747 behaving vaguely similar to the A320? Isn’t it a bigger airliner with more payload and cruise ceiling capability (captain obvious)? Also, I’m at about 94% maximum capacity payload. To me this looks like a bug but yeah I wanna know what you think or if I’m doing something wrong as this has never happened before the latest patch. Thanks.

A bugged AP FLCH
a. A/T off, increase throttle, climb, A/T on
b. FLCH off, V/S on

in simple airplanes you use throttle with FLCH

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So I have to hand fly climb up and then turn on Autopilot. Ok, I’ll give it a try thanks.

Leave AP on
“A/T” is ‘arm AutoThrottle’ toggle, = throttle / spd autopilot (the left upper toggle on the AP shield = SHFT + R) // the visual is broken but in 747 a pink ‘autothrottle off’ warning show in the center screen //

you hand throttle up, so FLCH gets (bugged) proper power, and when it has that, you toggle A/T back on, which now works properly and brings you to to set Alt at speed.

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No this is a bug which seems to be related to icing.
See this thread.

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Ok, I appreciate it sorry for the confusion. Funny thing is I come from a family of pilots but I’m not one myself in real life. Yet I still get all the terminology mixed up :sweat_smile:

I suspected that as well and turned it on, turn on window heat as well but nothing… MS have got to fix this! :confused:

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There is a mod out on the net which will remove all icing effects.
When that hits, turning icing on won’t help.
However, flying inverted will!
Buckle up!

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I’m not one for mods but if it runs smoothly and is well maintained then why not, besides I always like to dangle cranky passengers upside down :smiling_imp:

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I am in the A320 at FL380 over Biscay, a little icing on the way up but not bad, AP after take off, T/THR most of the way, no problems here?
But I am mostly a GA VFR pilot, getta love the fps at FL380 though lol

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I’m actually glad the bug didn’t manifest for you because believe me it’s depressingly mind boggling lol! :joy:

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https://flybywiresim.com/

this is an awesome free upgrade for the A320, think you will enjoy it as it might all your problems, flies a whole lot better and i follow a real 320 pilot on youtube who seems to think its a big step up from the default model

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