can't post the log file because your forum isn't working also
this is a short cut of what is repeated 100000000 times in the log file
[LOG 01:44:14.614] Version Info: 0.1.0.0.20892
[LOG 01:44:14.614] Command Line Args:C:\Program Files (x86)\Steam\steamapps\common\Kerbal Space Program 2\KSP2_x64.exe
[LOG 01:44:15.725] [UI] Primary EventSystem Selected: 'GameManager'(instance id: 205062)
[LOG 01:44:15.730] [UI] Localization sources updating
[LOG 01:44:15.919] [UI] Localization sources updating
[LOG 01:44:15.928] [System] Set Loading Optimizations completed in 0,0013s.
UnityEngine.Object:Instantiate(GameObject, Transform)
KSP.Game.GameManager:CreateGameInstance(Action, Action`1)
KSP.Game.Flow.GenericFlowAction:DoAction(Action, Action`1)
KSP.Game.Flow.FlowAction:Do(Action`1, Action`2)
KSP.Game.Flow.SequentialFlow:NextFlowAction()
KSP.Game.Flow.SequentialFlow:Update()
[EXC 01:44:19.144] NullReferenceException: Object reference not set to an instance of an object
KSP.Game.GameManager.CreateGameInstance (System.Action resolve, System.Action`1[T] reject) (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
KSP.Game.Flow.GenericFlowAction.DoAction (System.Action resolve, System.Action`1[T] reject) (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
KSP.Game.Flow.FlowAction.Do (System.Action`1[T] resolve, System.Action`2[T1,T2] reject) (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
KSP.Game.Flow.SequentialFlow.NextFlowAction () (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
KSP.Game.Flow.SequentialFlow.Update () (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
[EXC 01:44:19.148] NullReferenceException: Object reference not set to an instance of an object
RandomPrefabLoader.ValidateContinuedExistenceOfManagedAssets (System.Collections.Generic.List`1[T] overrideGameStatesToCompareAgainst) (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
RandomPrefabLoader.LateUpdate () (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
[EXC 01:44:19.272] NullReferenceException: Object reference not set to an instance of an object
RandomPrefabLoader.ValidateContinuedExistenceOfManagedAssets (System.Collections.Generic.List`1[T] overrideGameStatesToCompareAgainst) (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
RandomPrefabLoader.LateUpdate () (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
[EXC 01:44:19.285] NullReferenceException: Object reference not set to an instance of an object
RandomPrefabLoader.ValidateContinuedExistenceOfManagedAssets (System.Collections.Generic.List`1[T] overrideGameStatesToCompareAgainst) (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
RandomPrefabLoader.LateUpdate () (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
[EXC 01:44:19.325] NullReferenceException: Object reference not set to an instance of an object
RandomPrefabLoader.ValidateContinuedExistenceOfManagedAssets (System.Collections.Generic.List`1[T] overrideGameStatesToCompareAgainst) (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
RandomPrefabLoader.LateUpdate () (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
[EXC 01:44:19.365] NullReferenceException: Object reference not set to an instance of an object
RandomPrefabLoader.ValidateContinuedExistenceOfManagedAssets (System.Collections.Generic.List`1[T] overrideGameStatesToCompareAgainst) (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
RandomPrefabLoader.LateUpdate () (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
[EXC 01:44:19.405] NullReferenceException: Object reference not set to an instance of an object
RandomPrefabLoader.ValidateContinuedExistenceOfManagedAssets (System.Collections.Generic.List`1[T] overrideGameStatesToCompareAgainst) (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
RandomPrefabLoader.LateUpdate () (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
[EXC 01:44:19.445] NullReferenceException: Object reference not set to an instance of an object
RandomPrefabLoader.ValidateContinuedExistenceOfManagedAssets (System.Collections.Generic.List`1[T] overrideGameStatesToCompareAgainst) (at <8c5bdf369a8c45f68951f69eb825ef73>:0)
everything under this are the nullreferenceexception repeated
windows10
pc specs are well above any requirement ever