No thrust on a vessel docked to a "payload"

[Andrea Galimberti]

DESCRIPTION
Screenshots, logs and saves are available here: https://drive.google.com/open?id=0B2f-19m8NGrcTFhDamtCQ0IzcFE

Please let me know if files are not accessible or more information is required.

I've a vessel about to land on Minmus (about to crash, actually). The vessel is composed by two parts:
- the upper part is a "vector" I use to move and land things;
- the bottom part is a "payload" to be landed.
The two parts are attached via senior docking ports (see screenshots).

During the game something mysterious happened and now the vessel doesn't accelerate nor change direction even at full thrust (see history below to know how this happened).
The vessel accelerates due to Minmus gravity, so it's subject to physics effects. It also rotates according my commands but the engines have no more effect.
If I drop the "payload", then the "vector" regains full functionalities and the engines are effective again.

KSP VERSION AND ENVIRONMENT
KSP 64-bit 1.2.2 (build id = 01622 2016.12.06 at 08:30:17 CET Branch: master)
Running on PC with Windows 10 Home

The game is quite heavily modded (about 80 mods), but I didn't found how to export from CKAN the list of the installed mods.

EDIT: I successfully managed to reduce the number of the installed mods. See "CKAN_mods.png" in the linked folder.

HISTORY
I launched the "vector" time ago with another payload I already landed on Minmus (the first part of the "Agri Core" base, on Minmus). The "vector" performed several mission to different sites and docked to other vessels, stations and bases.

I launched the "payload" from Kerbin with another vector. I put the "payload" into the hangar of vessel "HMover" in Kerbin orbit, then "HMover" traveled to Minmus orbit and dropped the "payload".
Please note that the "payload" doesn't have any manned nor automatic control.

Now I launched the "vector" from the Minmus surface and docked it to the "payload". Please note the docked vessel took the name "Logistic Core", which is the name of the "payload". Is this meaningful?

After docking the "vector" to the "payload" I had full control and I performed the following operations:
- saved a quicksave hitting F5
- destroyed part of the "payload" because the rocket exhausts of the "vector" was aligned to the solar panels of the "payload" :-(
- restored the quicksave with F9
- undocked the vessel and redocked again rotating the "vector" by 45 degrees
- performed the deorbit burn (yes, the vessel was still fully operational)

Now, half way to Minmus surface, I hit F5 again (the "quicksave.sfs" you found in the linked files) and attempted to land. Since the vessel is very unstable (bad design) it crashed and I restored the quicksave with F9.
I'm quite sure that FROM THIS POINT THE THRUST STOPPED TO HAVE EFFECT ON THE VESSEL. I tried changing the "control from here" to various parts, to undock and redock the vessel and to close and restart the game but nothing worked.
As I stated before the only way to regain thrust in the "vector" is to drop the "payload".

Thank you for your help and Best Regards
Andrea Galimberti

Edited January 11, 2017 by Andrea Galimberti
Added reduced list of installed mods

[DrLicor]

Hey,

First of all, welcome to the forums and thanks for reading the rules so you could put some decent report here  
Here's the modlist you use:
 

Mod DLLs found:
Stock assembly: Assembly-CSharp v1.0.0.0
ModuleManager.2.7.5 v2.7.5.0
000_AT_Utils v1.3.1.1
001_AnisotropicPartResizer v1.2.6213.41683
002_MultiAnimators v1.1.6213.41683
ConfigurableContainers v2.4.0.2
FilterExtensions v1.0.0.0
MiniAVC v1.0.3.2
aaa_Toolbar v1.0.0.0 / v1.7.13.0
MiniAVC v1.0.3.2
USITools v1.0.0.0
AtmosphereAutopilot v1.5.9.0
AtmosphereAutopilot.UI v1.0.0.0
B9PartSwitch v1.5.3.0
BonVoyage v0.11.1.0
Chatterer v0.9.92.1622
MiniAVC v1.0.3.2
CCK v1.2.1.0
MiniAVC v1.0.3.0
DavonRestrictedResourceSupplyModule v1.0.0.0
DistantObject v1.8.1.12781
DMagic v1.3.0.8 / vv1.3.8
ContractParser v1.0.5.0 / vv5.0
ProgressParser v1.0.6.0 / vv6.0
ContractsWindow v1.0.7.3 / vv7.3
ContractsWindow.Unity v1.0.7.3
EasyVesselSwitch v1.2.0.0 / v1.2.0 for KSP v1.2
KSPDev_Utils.0.19.0 v0.19.0.0 / v0.19.0 for KSP v1.2
MiniAVC v1.0.3.0
Atmosphere v1.5.6131.22338 / v1.0.0.0
CelestialShadows v1.5.6131.22338 / v1.0.0.0
CityLights v1.5.6131.22338 / v1.0.0.0
EVEManager v1.5.6131.22338 / v1.0.0.0
PartFX v1.5.6131.22338 / v1.0.0.0
PQSManager v1.5.6131.22338 / v1.0.0.0
ShaderLoader v1.5.6131.22337 / v1.0.0.0
Terrain v1.5.6131.22338 / v1.0.0.0
TextureConfig v1.5.6131.22338 / v1.0.0.0
Utils v1.5.6131.22337 / v1.0.0.0
_BuildManager v1.5.6131.22338 / v1.0.0.0
ExperimentTracker v1.0.0.0
Launchpad v5.6.0.0 / v5.6.0
Firespitter v7.3.6212.36331
FP_DockingSndFX v2.1.12.27690
Hangar v3.2.1.2
HangarGrid v0.4.0.0
MiniAVC v1.0.3.0
HideEmptyTechTreeNodes v0.7.4.0
IndicatorLights v1.0.0.0
InterstellarFuelSwitch v2.3.2.0 / v2.3.2
MiniAVC v1.0.3.2
Scale_Redist v1.0.0.0
MiniAVC v1.0.3.2
JanitorsCloset v0.2.8.0 / v1.0.0.0
KAS v0.6.2.0 / v0.6.2 for KSP 1.2
MiniAVC v1.0.3.1
KerbalJointReinforcement v3.3.1.0
HyperEdit v1.5.3.0
BetterKerbNet v1.0.2.1
KIS v1.4.0.0 / v1.4.0 for KSP 1.2
KSPDev_Utils v0.17.0.0 / v0.17.0 for KSP v1.2
MiniAVC v1.0.3.0
ModularFlightIntegrator v1.0.0.0 / v1.2.3.0
Kopernicus.Components v1.0.0.0
Kopernicus.OnDemand v1.0.0.0
Kopernicus v1.0.0.0
Kopernicus.Parser v1.0.0.0
LaunchNumbering v0.3.0.0
MechJeb2 v2.5.1.0 / v / v2.6.0.0
DockingPortAlignmentIndicator v1.0.0.0
DPAI_RPM v1.0.0.0
MiniAVC v1.0.3.2
ModuleDockingNodeNamed v1.0.0.0
MiniAVC v1.0.3.0
NearFutureElectrical v1.0.0.0
MiniAVC v1.0.3.0
NearFuturePropulsion v0.7.5.12674 / v0.7.5.*
MiniAVC v1.0.3.0
NearFutureSolar v0.4.0.0
MiniAVC v1.0.3.0
MiniAVC v1.0.3.0
PlanetShine v1.0.6121.34655
PortraitStats v1.0.13.0
ProceduralFairings v0.0.3.17
ProceduralParts v1.2.8.0
SCANsat v1.6.0.11 / vv16.11
scatterer v1.0.6134.38560
ScienceRelay v1.0.3.1 / vv3.1
CLSInterfaces v1.0.0.0
ShipManifest v5.1.3.1
KerbalAlarmClock v3.8.3.0
Scale v2.3.3.0
Scale_Redist v1.0.0.0
Konstruction v0.0.0.0
USILifeSupport v1.0.0.0
KolonyTools v1.0.0.0
MiniAVC v1.0.3.2

Folders and files in GameData:
000_AT_Utils
000_FilterExtensions
000_FilterExtensions Configs
000_Toolbar
000_USITools
AtmosphereAutopilot
B9PartSwitch
BonVoyage
BoulderCo
Chatterer
CommunityCategoryKit
CommunityResourcePack
CommunityTechTree
ConfigurableContainers
DavonSupplyMod
DistantObject
DMagicOrbitalScience
DMagicUtilities
EasyVesselSwitch
EnvironmentalVisualEnhancements
ExperimentTracker
ExtraplanetaryLaunchpads
Firespitter
FP_DPSoundFX
Hangar
HangarGrid
HeatControl
HideEmptyTechTreeNodes
HullCameraVDS
IndicatorLights
InterstellarFuelSwitch
IrishmanIndustries
JanitorsCloset
jool_rings
KAS
KerbalHacks
KerbalJointReinforcement
Kerbaltek
KerbNetController
KIS
Kopernicus
LaunchNumbering
MechJeb2
Mk2Expansion
ModularFlightIntegrator
NavyFish
NearFutureConstruction
NearFutureElectrical
NearFuturePropulsion
NearFutureSolar
PlanetShine
PortraitStats
ProceduralFairings
ProceduralParts
SCANsat
scatterer
ScienceRelay
ShipManifest
SpaceY-Expanded
SpaceY-Lifters
Stock folder: Squad

StockVisualEnhancements
SVEKopernicus
TriggerTech
TweakScale
UmbraSpaceIndustries
UniversalStorage
VaporVent
MechJebAndEngineerForAll.cfg
mkskspedia.ksp
ModuleManager.2.7.5.dll
ModuleManager.ConfigCache
ModuleManager.ConfigSHA
ModuleManager.Physics
ModuleManager.TechTree
toolbar-settings.dat

Procedural parts seem to be outdated.. at least that one of the first things your log says. 
And you're getting a lot of errors and warnings with the MK2 expantion mod.
 

Not saying it has anythings to do with your problem, but you might take a look at it.  

When docking to crafts together, there's a system of which name it gets, for instance, when docking a spacecraft to a station, you'll always end up with the stations name. The same for a base, when docking something to a base, the docked craft will also include in a base, not the other way around. What you can try is to select the command module from your propulsion stage, click on 'control from here' and change the craft into a lander or spacecraft. 
 

But you're saying you've done it earlier? Did you update some mods between the last succesful launch and the first bugged launch?
As you said, the problem started when you reverted to a quicksave. I don't when the quicksave before that one is, but maybe you can try that one. Just to see if it has the same there.

 

 

[Andrea Galimberti]

Hi DrLicor

Thanks for your reply.

First of all I confirm that changing the "control from here" focus doesn't fix the problem, nor removing the mk2 expansion mod

However I've some news: I reverted to an old save and re-done the mission adding a Probodobodyne OKTO2 to the "payload".

This time I quicksaved the game before performing the de-orbit burn. I used MechJeb2 "land at target" function and I noticed I got again the very same problem as soon as the vessel entered a sub-orbital trajectory. Sounds crazy, isn't it?