Decoupling multiple times while on escape trajectory creates exceptions

[ShadowZone]

Game Version​

2026.1.4.3233

Operating System​

Windows 11

What Happened​

I right clicked on Rocket, selected "Decouple". It decoupled the capsule and everything attached to it. I switched through a couple of vessels until I was back at the rest of Rocket (servicebay, tank, engine), right clicked on the tank, selected "Decouple".
The game through a bunch of exceptions (see log and video).
I then tried to decouple the engine from the tank, I was able to press the "Decouple" button, but nothing appeared to happen.

What Was Expected​

I expected the vessel to decouple and no exception to occur.

Reproduction Steps​

1. Launch game with Rocket in Orbit
2. set vessel to escape trajectory away from Earth
3. Right click on service bay, select "decouple"
4. cycle through available vessels until the service bay is back in focus
5. right click on tank, select "decouple"

Reproduction Rate​

reliably reproducable

Additional Info​

• Video: https://drive.google.com/file/d/1mOSAe8NxAnr84dUtsuogsrkEzQLTNU5i/view?usp=sharing
• Log: https://drive.google.com/file/d/1VHXQq8ZZAAmw-vQ2niunXceWf0TlPw92/view?usp=sharing

 

[JPLRepo]

this is known problem when you disconnect massless parts.