"destroyed" Vessel after undocking docking ports

[EngineerinSquid]

It seems that I have run into a bug that the game will auto destroy my vessels when i select undock from the parts manager. also after the rare successful undock, fuel tank levels stop showing up

[Docker]

I've found you need to undock from the docking port attached to the part you're controlling from. If you undock from the other docking port it "destroys" your vessel; they clip through each other and you're left in a state of limbo of controlling two vessels at once while they float past each other. 

[EngineerinSquid]

19 hours ago, Docker said:

I've found you need to undock from the docking port attached to the part you're controlling from. If you undock from the other docking port it "destroys" your vessel; they clip through each other and you're left in a state of limbo of controlling two vessels at once while they float past each other. 

I'll have to try that on my next mission here

[Abstractsolitude]

I'm seeing the same thing, although the vessels are destroyed (well, completely disappear actually) no matter which docking port I click on when I decouple via the parts manager.

One difference, is that I strutted the lander and orbiter prior to launch to reduce the dreaded wobble, but can't find any way of removing the struts after launch. There's nothing like KSP1, where you can right click on a strut and remove it - parts manager doesn't have that functionality.

I guess it's possible the struts combined with the two docked vessels are causing the 'destroy' bug when I try to decouple.

Sigh...

[Tazooka]

Same issue. Just be sure to quick save a lot

It took me till the 3rd attempt until my probes were not destroyed from undocking. However parts still got destroyed