1.7.7.0 BlackSquare B60 Turbine Duke cockpit issues -Avionics and switches

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ISSUE DESCRIPTION

Description of the issue:

BlackSquare B60 turbine Duke avionics and switches do not work as intended.

Primary HSI: Heading and course knobs spin in unison, randomly back and forth causing causing the HSI to spin matching the knobs.

the RMI spins in sympathy with the HSI.

Primary attitude indicator shows a constant left bank when on the ground, the secondary attitude indicator twists and jitters.

GTN 750/650 do not start and show black screens

Switches that are not mapped automatically toggle to off with the exception of fuel vent heat.

FREQUENCY OF ISSUE

How often does this occur for you (Example: Just once, every time on sim load, intermittently)?
This behavior occurs with every free flight launch using the BlackSquare B60 Turbine Duke despite sim exit/relaunch and Xbox restarts. I compared the expected behaviors against the Carenado B55 Baron and the Baron appears to be working as expected whereas the B60 turbine Duke definitely is not performing as expected. This the aircraft I fly every day and have done so in both MSFS2020/2024. It worked yesterday in the previous beta version and today it does not. Seeing it not work in MSFS2024 is very disappointing.

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

  1. Turn on Xbox

  2. Launch MSFS 2024

  3. Select free flight

  4. Select BlackSquare B60 Turbine Duke

YOUR SETTINGS

If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the User Support Hub.

What peripherals are you using:

Honeycomb alpha/bravo throttle and yoke, wired mouse, usb keyboard, xbox controller.

[PC Only] Are you using Developer Mode or have you made any changes to it?

[PC Only] What GPU (Graphics Card) do you use?

[PC Only] What other relevant PC specs can you share?

MEDIA

Please add a screenshot or video of the issue occurring.

I attached a video link demonstrating the behaviors.

1 Like

The same is happening with the baron, and probably with the entire black square fleet. Didn’t happen on 1.7.6.0, just now on 1.7.7.0

2 Likes

Thank you for the post and the video. The same happens with the Antonov AN-2… AN2 completely broken with SU5 Beta

1 Like

Should be fixed.
Continuing the discussion from Sim Update 5 Beta (1.7.9.0) Release Notes - March 3, 2026: