kerbals going mia on Career start, and ships dismanteling randomly

[Space Kadet]

So i have now started 8 different careers on 2 installs, and i always get a missing kerbal. its been everyone bar Val also after a few hours of play i get ships dismanteling, one  just detached every link on loading and floateda about, one the parts just disseapeared, no error messages or anything, they just vanashed, and this happened every single time i reloaded the save no matter what, about 10 minutes after reload. 

in total ive had this happen on every single save. but i there is nothing in the event log and nothing in the F12 menu.
 

every mod is 1.2 updated, 

and the mod list is huge......

000_USITools
AirplanePlus
B9PartSwitch
Benjee10_X-37B
BetterBurnTime
Bluedog_Design_Bureau
BonVoyage
Chatterer
CommunityCategoryKit
CommunityResourcePack
Cormorant Aeronology
CryoEngines
CryoTanks
CTN
CxAerospace
DeployableEngines
DMagicScienceAnimate
EnvironmentalVisualEnhancements
ExtraplanetaryLaunchpads
Firespitter
Firespitter.dll
FuelTanksPlus
GravityTurn
HeatControl
InterstellarFuelSwitch
JSI
KAS
KerbalAtomics
KerbalEngineer-master
KerbalizedFlagpack
KerbalReusabilityExpansion
Kerbaltek
KIS
Klockheed_Martian_Gimbal
KSPRescuePodFix
KWRocketry
LBSI
LETech
MagicSmokeIndustries
MarkIVSystem
MCM
MechJeb2
Mk2Expansion
Mk3Expansion
ModRocketSys
ModularFuelTanks
ModuleManager.2.7.1.dll
ModuleManager.ConfigCache
ModuleManager.ConfigSHA
ModuleManager.Physics
ModuleManager.TechTree
MrMeeb
NearFutureConstruction
NearFutureElectrical
NearFutureProps
NearFuturePropulsion
NearFutureSolar
NearFutureSpacecraft
OLDD
OPT
PartOverhauls
Phoenix_Industries_Boosters
PlanetaryBaseInc
PlanetShine
ProceduralDynamics
RealScaleBoosters
Regolith
REPOSoftTech
scatterer
SmokeScreen
SpaceDock
SpaceY-Expanded
SpaceY-Lifters
Squad
StageRecovery
StationPartsExpansion
StationScience
StockVisualEnhancements
SurfaceLights
Trajectories
TriggerTech
UberDyneAstronautics
UmbraSpaceIndustries
UniversalStorage
VanguardTechnologies
Version_2.0 Industries
WildBlueIndustries

[Space Kadet]

Ok so on further research what was happening was a NaN bomb caused by updating mods. What was happening was the ships where just coming appart, but the messages said that the parts where changing from sun orbit to mun orbit, then their orbit would NaN and the part would be deleted. This happened so rapidly a 700 peice ship would come appart in a second, always during warp.

 

So if anyone has an issue with this in the future, this might help!