Crash when orbit is near to eccentricity 1

[SNS]

Game Version​

[e.g. 2026.1.123.4567]

Operating System​

Windows 11

What Happened​

The game crashes when setting orbit to eccentricity slightly above 1. Log file reports the following:

03:49:16.566 ERROR Unhandled exception System.Exception: unclassifiable orbital energy: NaN
Parent: Sol Time: ∞secs.
PositionCci: <NaN, NaN, NaN>
VelocityCci: <NaN, NaN, NaN>
at KSA.Orbit.CreateFromStateCci(IParentBody parent, SimTime stateTime, double3 positionCci, double3 velocityCci, byte4 orbitLineColor)
at KSA.PatchedConic.CreateFromCalcData(PatchCalcData calcData)
at KSA.FlightPlan.CalculateEscapePatch(PatchedConic patch, SimTime startTime, PatchedConic& nextPatch)
at KSA.FlightPlan.CalculatePatch(List`1& patches, PatchedConic patch, SimTime startTime, KeyHash idHash, SimTime& expiryGameTime, Nullable`1 nextBurnTime, Boolean burnPatch, Int32 polynomialOrderN, IOrbiter encounterFilter)
at KSA.FlightPlan.ComputeCompleteTrajectory(Int32 patchLimit, Int32 polynomialOrderN, IOrbiter encounterFilter)
at KSA.Vehicle.Teleport(Orbit orbit, Nullable`1 body2Cce, Nullable`1 bodyRates)
at KSA.InputEvents.TeleportInputData.Apply()
at KSA.InputEvents.TypedBuffer`1.ApplyAll()
at KSA.InputEvents.ApplyInputEvents()
at KSA.Program.PrepareFrame(Double currentPlayerTime, Double dtPlayer)
at KSA.Program.OnFrame(Double currentPlayerTime, Double dtPlayer)
at KSA.App.Run()
at KSA.Program.Main(String[] inArgs).

What Was Expected​

No crash or floating point error when setting eccentricity slightly above 1.

Reproduction Steps​

1. Start game already in orbit.
2. Set the orbit the default once above Earth with safety checks enabled
3. Set orbit to eccentricity to 1.000001, and time since periapsis to 0. The game crashes here. I am only able to replicate this crash with time to periapsis set to 0. I am not able to replicate this crash for eccentricity less than 1, though.
4. This error persists when time since periapsis is set near to 0.

Reproduction Rate​

Always

Additional Info​

• Note I am running the "very low settings" community config, but I don't think that changes anything.
• I'm sure that the error is coming from specifically the process of setting the state vector from orbital elements. Maybe from a near-to 0/0 fp error that evades checks for a parabolic orbit.