ISSUE DESCRIPTION
Description of the issue:
After SU3, in the Cessna Citation Longitude, the autopilot will sometimes fail to engage entirely. This has occurred in two different scenarios: once shortly after takeoff, and once after a long flight where the autopilot had been functioning normally until it failed on approach. When this happens, the autopilot master cannot be engaged either via joystick hotkey or by clicking directly in the cockpit. Other autopilot functions (heading or altitude hold) remain clickable, but they do not activate since the autopilot master is not engaged.
FREQUENCY OF ISSUE
How often does this occur for you (Example: Just once, every time on sim load, intermittently)?
It has occurred on 2 out of 3 flights in the Longitude after SU3. The behavior appears intermittent and does not follow a consistent pattern that I can put my finger on.
REPRODUCTION STEPS
Please list clear steps you took in order to help our test team reproduce the same issue:
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Launch Microsoft Flight Simulator and load into the Cessna Citation Longitude.
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Start the aircraft cold and dark from a gate/stand.
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First case: Departed from Charlotte. After takeoff, attempted to engage autopilot. The master autopilot button would not engage (neither via joystick hotkey nor cockpit click).
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Second case: Departed from Melbourne, Australia. Autopilot functioned normally throughout the flight. On approach into Sydney, attempted to re-engage autopilot and it would not activate, even though other autopilot functions (HDG, ALT, etc.) were clickable.
YOUR SETTINGS
What peripherals are you using, if relevant:
Turtle Beach VelocityOne joystick, standard mouse, and keyboard.
[PC Only] Are you using Developer Mode or have you made any changes to it?
Not using Developer Mode.
[PC, MSFS 2020 Only] Are you using DX11 or DX12?
Not sure which DirectX version is currently in use.
[PC Only] What GPU (Graphics Card) do you use?
AMD Radeon RX 7900XT.
[PC Only] What other relevant PC specs can you share?
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GPU 7900XT
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RAM: 32GB DDR4
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Storage: 2TB Samsung EVO M.2 SSD
MEDIA
No screenshot or video available. When attempting to engage the AP master button in the Citation Longitude, nothing occurred. No TCAS warnings were present, and to my knowledge, the flight plan and FMC were fully set up prior to the incident.