MS2020 aircraft that otherwise work fine get Randomly Launched into Orbit

[MSFS 2024] Bug Reports Aircraft
1

MS2020 aircraft that otherwise work fine get Randomly Launched into orbit. This happens Cold and Dark, Running, on the Ground, in the air… without rhyme nor reason.

Multiple aircraft.

Has anyone experienced this behavior?

Rick

2

This isn’t a question for the SDK. Please post in the Official User Forums. Thanks.

3

This is not a User question We are a Developer. Working on 2020 to 2024 migration.

4

If it’s not reproducible under consistent terms, I don’t think it’s going to get answered here.

5

I would look at the contact points configuration in flight_model.cfg. Especially around the spring compression values. It was always possible to have a 2020 aircraft move on it’s own due to settings which presumably cause the physics calculations to be far from normal. You can assume that the physics engine is different enough to reveal issues that were not present in 2020.

6

Hello @RotorRick00

It can be caused by division by 0 that are not handled correctly on our side.
For example: Flight Model Completely Breaks (Elevator_Up_Limit) - [MSFS 2024] Bug Reports / Aircraft - MSFS DevSupport

If this happens consistently, please create a bug report and provide us with the package and we’ll have a look.

Regards,
Sylvain

7

OK We are looking at that now. Is there a list of variables that need to be NON-zero values to workaround the issue?

Thank You!
Rick

8

So, after much fiddling around, the 2020 legacy packages we have running in 2024 still seem to randomly launch themselves into orbit. Happens on the ground, in the air, running, not running. NO errors are generated in any logs nor console windows.

Any new insights?

Rick

9

As Sylvain told you in his last response we’d need to check your package to help further on this issue - unless you can name a readily available 2020 package (I mean already published on the Marketplace) that exhibits this issue.

Best regards,

Eric / Asobo

10

Eric,
Our currently ingested and published marketplace B206 helicopter exhibits this random behavior.

Thanks,

Rick

1 Like
11

I have been told to relay this information:

the package name is
flyinside-b206
it’s the ported package encountering this issue in MSFS2024

Rick

12

Hello… any status updates?

13

We are investigating.
We don’t have a repro yet but we will let you know when we make progress.

Regards,
Sylvain

14

Try VR and/or adding/replugging USB devices/flight controls. That seems to cause it regularly.

Rick

15

We encountered this kind of issue on the Boeings. We had some code that was setting spoiler lever position to slightly too high (over 100%), and that would cause undefined behavior in the flight model due to the surfaces normalization and launch the planes high into the air and cause them to spin wildly.

If you have code dealing with control surfaces, make super sure you don’t have any values going outside bounds even slightly.

-Matt

2 Likes
16

Did you get that MCAS code straight from Boeing? :smile:

1 Like
17

Is this topic related to the SPEED-BRAKE issue on the 787-10v1 where the plane spins to the air? Nevertheless, it’s basically a similar issue but it doesn’t go to Orbit it stays on earth.

18

We have seen no solution for this Launch Into Space issue. Aircraft works flawlessly in 2020, launched into space in 2024.
Havent heard anything here for months.
I’d like to see some movement. It’s obviously related to 2020/2024 legacy and should work fine.
Rick