"Loaded preset default" destroys ship

[Tuyti]

Hi there.

I have a problem that´s got me stumped. I´m playing on 1.12.3 and have a whole bunch of mods installed.
I built a fairly complicated Rocket with a Lander and a Rover attached but when I try and launch into Orbit the rocket always destroys itself to varying degrees. It happens during the circularization burn when the note "loaded preset default" appears on screen. This causes a short heavy lagspike which desintegrates the rocket. I´ve tried using autostruts in different modes but the problem is persistent. Does anybody know what I could do to fix that?

Mods installed:
Click Through Blocker
Filter Extensions
TexturesUnlimited
ToolbarControl
KSP_Recall
AstronomersVisualPack
B9_Aeorospace_ProceduralWings
BetterTimeWarp
Chatterer
CommunityResourcePack
CommunityTechTree
CrowdSourcedScience
DecouplerShroud
DistantObject
EditorExtensionsRedux
EnvironmentalVisualEnhancements
FShangarExtender
HideEmptyTechTreeNodes
ImprovedTreeEnginePlacement
InterstellarFuelSwitch
KerbalEngineer
KerbalFlightData
KerbalFlightIndicators
KerbalFoundries
KerbalReusabiltyExpansion
Kopernicus
KSPWheel
MechJeb2
ModularFlightIntegrator
ModuleManagerWatchdog
NavyFish
Parallax
PersistentRotation
PhotonSail
Pilot Assistant
RCSBuildAid
Scatterer
ScienceAlert
ShipEffectContinued
ShipManifest
ShowFPS
Sigma
SoundtrackEditorForked
TriggerTech
TweakScale
WarpPlugin
Waterfall
XyphosAerospace
ModuleManager
 

Thanks in advance

Edited December 27, 2021 by Tuyti

[Tuyti]

After a couple of hours of troubleshooting I have found the culprit. It was Pilot Assistant not beeing able to find certain aspects of the vessel and loading the default again. Luckily MechJeb2 has almost the same functionality built in.

Edit: Problem is still persistent. This just got rid of the "loaded preset default" appearing

Edited December 27, 2021 by Tuyti
Was not the fix

[Tuyti]

I have kinda found a workaround. I just heavily reinforced the ship and managed to get it into Orbit even with the lagspike occuring. I hope that future designs don´t suffer from the same problem.