Weird Bug, Might be a kraken, Video, logs, and save file included

[Kettle Vallei]

So this is my first post to the forum. 

 

Not sure what's causing it but when I attempt to launch this craft it goes well , then there is an explosion ABOVE the nose,  the craft will then accelerate ridiculously fast and begin to disintegrate. 

 

I am not too worried about fixing it as it only seems to affect this craft, but I figured its interesting enough to share.

 

I have included the logs, and files and a list of installed mods, it should all be in this file:

https://www.dropbox.com/sh/5l2bt4x7xlqgcrt/AABPCu-s-nIyo2YxD9Ic7KyHa?dl=0

 

 

[VoidSquid]

I had a similar issue some time ago, 7 seconds after launch two parts within the fairing were colliding (two engines mounted on an engine plate). You can check by pressing F3 the very moment it happens.

Unfortunately I couldn't solve the issue, in the end, I had to rebuild the craft completely.

[vv3k70r]

4 hours ago, Kettle Vallei said:

Not sure what's causing it but when I attempt to launch this craft it goes well , then there is an explosion ABOVE the nose

Do You have world stabiliser? In such case exclude launchpad in config.

If not - check origin position and conection, some construction loads cause part to repulse as they are beneath the ground.

[VoidSquid]

But WS just smoothly drops down the craft, and leaves it alone then after a few seconds, no? The issue occurs _after_ that time, _after_ launch, if I understand OP correctly.

What OP's and mine occurrence have in common, both seem to have to do with fairings.

Actually, can you try to launch the craft without the fairing, @Kettle Vallei and check, if that makes the Kraken leave you alone?

Edited January 19, 2021 by VoidSquid

[Kettle Vallei]

Thanks for the responses,

5 hours ago, VoidSquid said:

I had a similar issue some time ago, 7 seconds after launch two parts within the fairing were colliding (two engines mounted on an engine plate). You can check by pressing F3 the very moment it happens.

Unfortunately I couldn't solve the issue, in the end, I had to rebuild the craft completely.

I had no idea that pressing that key would bring that up, I also found the debug menu key, and used that. 

Using the new data sources I re-ran the flight in its original state to see what would show up, what it looks like is that the radial drogue chute I had attached to the command pod become detached and slammed into a hydraulic cylinder. this apparently caused KER to throw a fit because it started to throw crazy logs right after ( see spoiler for log excerpt). I snapped a screenshot of the Flight Results  window  Buggy Flight Results .  I then reverted the craft to the VAB and removed the drogue chute, re-saved it as a new craft ( to preserve teh original for further testing) and then launched it. 

I had no issues with the second flight and have just reached space, the flight results look good and the debug console is clean, Fixed Flight Results.

I am not sure what exactly caused the drogue chute to fail and cause KER to throw fits,  I can't make heads or tails of the log data.

 

Again thank you for the help guys. 

Spoiler

[LOG 05:55:47.073] radialDrogue Exploded!! - blast awesomeness: 0.5
[LOG 05:55:47.123] [RemoteTech] SatelliteManager: OnVesselDestroy(fef12e76-d4de-4483-8186-6f0f3035a74c, Buggy Original Debris)
[LOG 05:55:47.123] [RemoteTech] SatelliteManager: UnregisterProto(fef12e76-d4de-4483-8186-6f0f3035a74c)
[LOG 05:55:47.143] KerbalEngineer -> Exception SimManager.StartSimulation() // System.NullReferenceException
  at (wrapper managed-to-native) UnityEngine.Component.get_transform(UnityEngine.Component)
  at KerbalEngineer.VesselSimulator.PartSim.New (Part p, System.Int32 id, System.Double atmosphere, KerbalEngineer.LogMsg log) [0x00012] in <f7b97258edac489d9f763fc3ebcf33c6>:0 
  at KerbalEngineer.VesselSimulator.Simulation.PrepareSimulation (KerbalEngineer.LogMsg _log, System.Collections.Generic.List`1[T] parts, System.Double theGravity, System.Double theAtmosphere, System.Double theMach, System.Boolean dumpTree, System.Boolean vectoredThrust, System.Boolean fullThrust) [0x00185] in <f7b97258edac489d9f763fc3ebcf33c6>:0 
  at KerbalEngineer.VesselSimulator.SimManager.StartSimulation () [0x000ba] in <f7b97258edac489d9f763fc3ebcf33c6>:0 
[LOG 05:55:47.143] KerbalEngineer ->   at (wrapper managed-to-native) UnityEngine.Component.get_transform(UnityEngine.Component)
  at KerbalEngineer.VesselSimulator.PartSim.New (Part p, System.Int32 id, System.Double atmosphere, KerbalEngineer.LogMsg log) [0x00012] in <f7b97258edac489d9f763fc3ebcf33c6>:0 
  at KerbalEngineer.VesselSimulator.Simulation.PrepareSimulation (KerbalEngineer.LogMsg _log, System.Collections.Generic.List`1[T] parts, System.Double theGravity, System.Double theAtmosphere, System.Double theMach, System.Boolean dumpTree, System.Boolean vectoredThrust, System.Boolean fullThrust) [0x00185] in <f7b97258edac489d9f763fc3ebcf33c6>:0 
  at KerbalEngineer.VesselSimulator.SimManager.StartSimulation () [0x000ba] in <f7b97258edac489d9f763fc3ebcf33c6>:0 
[EXC 05:55:47.309] NullReferenceException
	UnityEngine.Transform.get_position () (at <5aeafee3fea24f37abd1315553f2cfa6>:0)
	FlightIntegrator.DragCubeSetupAndPartAeroStats (Vessel v) (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	FlightIntegrator.FixedUpdate () (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	UnityEngine.DebugLogHandler:LogException(Exception, Object)
	ModuleManager.UnityLogHandle.InterceptLogHandler:LogException(Exception, Object)
	UnityEngine.Debug:CallOverridenDebugHandler(Exception, Object)
[EXC 05:55:47.314] NullReferenceException
	UnityEngine.Transform.get_position () (at <5aeafee3fea24f37abd1315553f2cfa6>:0)
	Vessel.SetPosition (Vector3d position, System.Boolean usePristineCoords) (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	Vessel.SetPosition (Vector3d position) (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	FloatingOrigin.setOffset (Vector3d refPos, Vector3d nonFrame) (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	FloatingOrigin.FixedUpdate () (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	UnityEngine.DebugLogHandler:LogException(Exception, Object)
	ModuleManager.UnityLogHandle.InterceptLogHandler:LogException(Exception, Object)
	UnityEngine.Debug:CallOverridenDebugHandler(Exception, Object)
[EXC 05:55:47.334] NullReferenceException
	UnityEngine.Transform.get_position () (at <5aeafee3fea24f37abd1315553f2cfa6>:0)
	FlightIntegrator.DragCubeSetupAndPartAeroStats (Vessel v) (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	FlightIntegrator.FixedUpdate () (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	UnityEngine.DebugLogHandler:LogException(Exception, Object)
	ModuleManager.UnityLogHandle.InterceptLogHandler:LogException(Exception, Object)
	UnityEngine.Debug:CallOverridenDebugHandler(Exception, Object)
[EXC 05:55:47.337] NullReferenceException
	UnityEngine.Transform.get_position () (at <5aeafee3fea24f37abd1315553f2cfa6>:0)
	Vessel.SetPosition (Vector3d position, System.Boolean usePristineCoords) (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	Vessel.SetPosition (Vector3d position) (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	FloatingOrigin.setOffset (Vector3d refPos, Vector3d nonFrame) (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	FloatingOrigin.FixedUpdate () (at <f8bc9e2b903e48a5b248ab0083c07c62>:0)
	UnityEngine.DebugLogHandler:LogException(Exception, Object)
	ModuleManager.UnityLogHandle.InterceptLogHandler:LogException(Exception, Object)
	UnityEngine.Debug:CallOverridenDebugHandler(Exception, Object)
[LOG 05:55:47.358] KerbalEngineer -> Exception SimManager.StartSimulation() // System.NullReferenceException
  at (wrapper managed-to-native) UnityEngine.Component.get_transform(UnityEngine.Component)
  at KerbalEngineer.VesselSimulator.PartSim.New (Part p, System.Int32 id, System.Double atmosphere, KerbalEngineer.LogMsg log) [0x00012] in <f7b97258edac489d9f763fc3ebcf33c6>:0 
  at KerbalEngineer.VesselSimulator.Simulation.PrepareSimulation (KerbalEngineer.LogMsg _log, System.Collections.Generic.List`1[T] parts, System.Double theGravity, System.Double theAtmosphere, System.Double theMach, System.Boolean dumpTree, System.Boolean vectoredThrust, System.Boolean fullThrust) [0x00185] in <f7b97258edac489d9f763fc3ebcf33c6>:0 
  at KerbalEngineer.VesselSimulator.SimManager.StartSimulation () [0x000ba] in <f7b97258edac489d9f763fc3ebcf33c6>:0 

 

 

[VoidSquid]

I don't think KER has anything to do with the Kraken here, it clearly goes bonkers after the initial issue, as per your log.

[Kettle Vallei]

No, I didn't mean to imply that KER was causing the kraken, just that I'm not sure why a piece falling off and hitting another piece would cause KER to start a simulation and go bonkers. I'm sure the piece coming off has to do with it not being correctly attached or something

[VoidSquid]

Yes, agreed. I'm still curious though, what happens if you launch without the fairing?

[Kettle Vallei]

I will replace chute and remove fairing from assembly when I get home this evening.

[Kettle Vallei]

22 hours ago, VoidSquid said:

Yes, agreed. I'm still curious though, what happens if you launch without the fairing?

Sorry this is late, had some personal stuff come up last night.

I ran the craft again with the fairing part completely removed, ( replaced it with a a Rockomax adaptor) re-added the same number of struts to the same spots, same failure.  However upon checking the debug console I no longer get KER trying to start a Simulation.

Screenshot of Flight Results, Debug, and Craft

 

It's a bizarre oddity.

 

After posting this I tested one more time but I enabled Auto-strut to heaviest part on both drogue chutes, and enabled rigid attachment, results in same failure.

Edited January 20, 2021 by Kettle Vallei
update info

[VoidSquid]

The heck... 

Ok, not related to the fairing then, I see. 

How can a drogue chute cause this?

[VoidSquid]

On 1/19/2021 at 4:57 AM, Kettle Vallei said:

I have included the logs, and files and a list of installed mods, it should all be in this file:

You're the 1st one looking for help and providing every possible data already in the initial post, you know.

Big thanks for that! 

Out of curiosity, I'll try to load and launch your craft "WIP2".

EDIT: can't load the craft as it contains parts from various mods that I don't have. Maybe one of the mods is to blame? Does it happen with a craft built only with stock parts too?

Edited January 20, 2021 by VoidSquid

[Kettle Vallei]

I ve been creeping this forum for a little while and  I read the stickies. (like a good forum user)

 

I have included a ckan modpack file as well as a modpack .txt in the original dropbox. If I recall correctly I used a number of Buffalo, Pathfinder, and remote tech parts on the satellites. As well as having both DLC installed.

 

I can strip down the craft to stock parts and see what happens and upload the craft file as well.  I'll try to do that tonight or tomorrow morning. 

 

 

[Kettle Vallei]

So, I determined the issue with the drogue is a combination problem.

1st) The drogue was not actually attached to the Command Module, drogue detaching with rest of vessel

2nd) I think there were some issues when I was using the sub-assemblies feature, one of the RCS anywhere thrusters became the parent part some how ( probably a miss click on my part)

VoidSquid, I tried to strip it down and remove all the non stock parts but I just keep running into issues with this craft. I'm gonna write it off as a fail and delete the craft file.

 

Thanks for all the help with this issue