LFBs Cause the Ship to be Uneditable/Unlaunchable

[Jetwave]

KSP Version: 1.0.4

OS: Windows (32bit KSP)

Note: I'm using the Asteroid Day mod, but since it's an official mod i figured I should put this here.

The Bug:

Using the large NASA LFBs in an asparagus staging configuration seems to corrupt the ship. You can continue to edit the ship fine but once you exit the VAB and attempt to launch this happens. If you load the saved ship you get this (Notice the lack of fairing between the second stage engine and the decoupler) instead of a proper VAB, and the only way to remove it is to exit the VAB and re-enter. This bug has happened to me with two different ships, both times when i replaced some LV-T30s with LFBs.

Craft Files:

Original ship with LV-T30s

Bugged ship with LFBs

The only difference is the LFBs and I added an extra experiment to the second one.

Edited July 30, 2015 by Jetwave

[sal_vager]

Hi Jetwave, there is definitely something wrong with your craft but it is not the LFB's, as by removing the fuel tanks of the north or south facing boosters from your Muna V causes the vessel to be bugged on launch and uneditable on return to the VAB.

No parts need to be added to your craft to cause this issue.

Here is what happens when you remove one of those tanks, the craft here has had most other parts removed to narrow down the issue.

The log is full of errors like this as well.

NullReferenceException: Object reference not set to an instance of an object

at Part.requestResource (.Part origin, Int32 resourceID, ResourceFlowMode flowMode, Double demand, Int32 requestID) [0x00000] in <filename unknown>:0

at Part.RequestResource (Int32 resourceID, Double demand) [0x00000] in <filename unknown>:0

at ModuleCommand.CheckControlSourceState () [0x00000] in <filename unknown>:0

at ModuleCommand.FixedUpdate () [0x00000] in <filename unknown>:0

Removing the fuel lines didn't fix it, I suggest you scrap this craft as even completely removing the 2.5m section or re-rooting the vessel did not fix it.

[Jetwave]

Ahh, I didn't think that it would be removing the parts that caused it I'll just use this as an opportunity to make a 2.5m Lander.