Rockets start rolling out of control.

[vinterskugge]

Hello, does anyone have an idea about what could make rockets to roll if SAS is turned off? Every time I turn on Smart A.S.S., which automatically turns of the SAS, or I just turn it off myself, the engines on the rockets start gimbaling in such a way that the rocket starts an uncontrollable rolling motion. It's not the way I built them that is wrong, because they used to work before, and every single one of them does this, plus, it's not that they're unbalanced, it's the engines that are gimbaling for some reason, as I said. I also reset the game settings, took out every mod I installed ever since this started, I reset Mechjeb, tried to create a new game, literally everything I've done has not fixed this issue, and I couldn't find anything online about it. I play RO/RSS and use Real Engines, US Rockets/Probes, KW Rocketry and Procedural Parts if that matters, but again, it all went well until a couple days ago, so I don't believe it's these mods that cause it.

[VoidSquid]

10 minutes ago, vinterskugge said:

it all went well until a couple days ago

Just a wild guess, your game, if you're playing it using Steam, might just have updated?

[vinterskugge]

32 minutes ago, VoidSquid said:

Just a wild guess, your game, if you're playing it using Steam, might just have updated?

No, it has not updated.

[VoidSquid]

Something must have been changed... the only person knowing that are you.

Hmm... starting a new sandbox game and importing your crafts there, same issue?

[GuessingEveryDay]

Really? Whenever I smack a plane too hard into the ground, without destroying anything, it starts spinning around.

[vinterskugge]

39 minutes ago, VoidSquid said:

Something must have been changed... the only person knowing that are you.

Hmm... starting a new sandbox game and importing your crafts there, same issue?

Nope, I tried a new game too and same thing. 

[paul_c]

2 hours ago, vinterskugge said:

 they used to work before

What is "before"? Are you doing tests of identical rockets which at some point in the past used to fly okay, but now no longer? And when you flew them before, could you actually 'fly' them as in alter the heading, angle of ascent, etc within a reasonable range? Or was it just doing a boggo-standard gravity turn that launched them? Or did Mechjob fly them for you?

IF those tests are reasonably scientific, then something must have changed. Probably the version of KSP??

BUT I suspect something is different, ie the rocket is now bigger, has more stuff, more power, extra boosters, etc etc. I am guessing. Please post a screenshot of the craft, it will give a good idea of what's going on.

As a guess until I see it, I am going to guess that its more draggy at the top than the bottom. This is a recipe for disaster once you get above about 5-10km, at that stage the atmosphere is still thick enough that its significant, and the speed is high enough too. Lower down, its not fast enough to mess up; and higher up, the atmosphere is too thin to influence it greatly.

 

[VoidSquid]

1 minute ago, paul_c said:

Please post a screenshot of the craft, it will give a good idea of what's going on

And maybe even a short video. Right now I only have a more or less vague idea what's happening.

[vinterskugge]

28 minutes ago, paul_c said:

What is "before"? Are you doing tests of identical rockets which at some point in the past used to fly okay, but now no longer? And when you flew them before, could you actually 'fly' them as in alter the heading, angle of ascent, etc within a reasonable range? Or was it just doing a boggo-standard gravity turn that launched them? Or did Mechjob fly them for you?

IF those tests are reasonably scientific, then something must have changed. Probably the version of KSP??

BUT I suspect something is different, ie the rocket is now bigger, has more stuff, more power, extra boosters, etc etc. I am guessing. Please post a screenshot of the craft, it will give a good idea of what's going on.

As a guess until I see it, I am going to guess that its more draggy at the top than the bottom. This is a recipe for disaster once you get above about 5-10km, at that stage the atmosphere is still thick enough that its significant, and the speed is high enough too. Lower down, its not fast enough to mess up; and higher up, the atmosphere is too thin to influence it greatly.

 

It is every single craft, even rockets that I downloaded, like DECQ's Saturn V for instance, so as I said, they are not built wrong. They all used to work until Sunday I believe, and now they don't. I did multiple missions before, and they are not sounding rockets. Also, it has nothing to do with the altitude, it happens equally at 1000m or in deep space. And no, the game version didn't change. As I said, what happens is that when I turn of SAS, the engines start gimbaling in a rolling motion, as if I were pressing E or Q on the keyboard, which I obviously don't. I would put a video of what happens but idk how lol.

[vinterskugge]

37 minutes ago, VoidSquid said:

And maybe even a short video. Right now I only have a more or less vague idea what's happening.

I would post a video but I got no idea how.

[VoidSquid]

Just upload the video file to any file sharing site of your choice and post a link here.

[paul_c]

8 minutes ago, vinterskugge said:

It is every single craft, even rockets that I downloaded, like DECQ's Saturn V for instance, so as I said, they are not built wrong. They all used to work until Sunday I believe, and now they don't. I did multiple missions before, and they are not sounding rockets. Also, it has nothing to do with the altitude, it happens equally at 1000m or in deep space. And no, the game version didn't change. As I said, what happens is that when I turn of SAS, the engines start gimbaling in a rolling motion, as if I were pressing E or Q on the keyboard, which I obviously don't. I would put a video of what happens but idk how lol.

Aaaaah no worries, sounds like a weird bug/issue I've not encountered. Might be worth checking all the key bindings, its almost as if a key is being interpreted as stuck on?

A backup and wipe/reinstall might be the quickest way to solve it, too. Pending how much stuff and how many mods etc.

[HebaruSan]

19 minutes ago, vinterskugge said:

it happens equally at 1000m or in deep space.

As I said, what happens is that when I turn of SAS, the engines start gimbaling in a rolling motion, as if I were pressing E or Q on the keyboard, which I obviously don't.

9 minutes ago, paul_c said:

sounds like a weird bug/issue I've not encountered. Might be worth checking all the key bindings, its almost as if a key is being interpreted as stuck on?

Sounds a bit like "trim".  Does Alt+X help?

[vinterskugge]

Just now, HebaruSan said:

Sounds a bit like "trim".  Does Alt+X help?

No, I also tried that, I forgot to mention it.

23 minutes ago, VoidSquid said:

Just upload the video file to any file sharing site of your choice and post a link here.

Okay, here you go. This is DECQ's Saturn V, just to make it clear that I didn't screw up the craft.

https://filebin.net/7miqc3ugmkd5moi1/video-1613684609.mp4?t=f4kilqz1

[VoidSquid]

Wow... totally weird. 

I agree with @paul_c :

26 minutes ago, paul_c said:

Might be worth checking all the key bindings, its almost as if a key is being interpreted as stuck on?

 

[HebaruSan]

Do you have a gamepad or joystick? I've seen "phantom" inputs like this before when mine was miscalibrated or just accidentally pressed in some direction without returning to the center.

[vinterskugge]

10 minutes ago, HebaruSan said:

Do you have a gamepad or joystick? I've seen "phantom" inputs like this before when mine was miscalibrated or just accidentally pressed in some direction without returning to the center.

I use keyboard.

44 minutes ago, paul_c said:

Aaaaah no worries, sounds like a weird bug/issue I've not encountered. Might be worth checking all the key bindings, its almost as if a key is being interpreted as stuck on?

A backup and wipe/reinstall might be the quickest way to solve it, too. Pending how much stuff and how many mods etc.

I checked the key-bindings too, I also reset the game settings, and I just re-installed the game, and nothing. I'm thinking it could be one of the mods, but I don't know which one, because the only new mod that I installed around the time this first happened was US Rockets and Probes, but I deleted those and it didn't fix it.

[paul_c]

What do the control inputs show (bottom left of screen)?

[vinterskugge]

47 minutes ago, paul_c said:

What do the control inputs show (bottom left of screen)?

They are showing a rolling movement, all the way to the left and right. If that's what you mean.

[paul_c]

Yeah something's definitely putting that input in then, be it a stuck key or an errant controller.

KSP famously can't work with a lot of joysticks, even if you have one plugged in and its centred, KSP interprets its position all over the place so it might be causing the issue.

Any other games or hardware installed recently?

[vinterskugge]

5 minutes ago, paul_c said:

Yeah something's definitely putting that input in then, be it a stuck key or an errant controller.

KSP famously can't work with a lot of joysticks, even if you have one plugged in and its centred, KSP interprets its position all over the place so it might be causing the issue.

Any other games or hardware installed recently?

I don't even own a joystick, I'm using keyboard xD And the keyboard works alright. Well either way, guess I'll just have to get used to it. Thank you for trying to help though.

[jimmymcgoochie]

Unbind the roll controls, check if the problem persists; if not then re-bind the roll controls to the same keys, see if the problem returns; if it does, switch to other keys for roll control and see if the problem persists again; if not then you’ve probably got a faulty keyboard or the input is being misinterpreted; plug keyboard into another USB slot and see if that helps.

[vinterskugge]

2 hours ago, jimmymcgoochie said:

Unbind the roll controls, check if the problem persists; if not then re-bind the roll controls to the same keys, see if the problem returns; if it does, switch to other keys for roll control and see if the problem persists again; if not then you’ve probably got a faulty keyboard or the input is being misinterpreted; plug keyboard into another USB slot and see if that helps.

Well it's weird. I deleted the save file in which this happened first, started a new game and now it works. But before this I tried to create a new game while still having that first one, and the same problem  appeared on the new game too. I can't begin to understand what's the logic behind it, but if it works, it works. Hopefully it won't happen again.