Kerbal Space Program

KSP Version: 1.1.0.1230 (x32 and x64)

What Happens:
When I have created a craft, an put engines on using symmetry, I get a error while using the right click menu and "fixation".

Valid for: In VAB and IN Flight

Mods / Add-Ons: NONE in the documented example here.

Steps to Replicate:
Create new craft - you can use the attached ones.
1. Place two engines on the craft using symmetry.
2. Right click one of them, lock in (fixate) the menu.
3. Right click the other engine

BANG: NullReferenceException.

Result:

When using right click menu on symmetrical parts and fixing them:
[LOG 11:59:34.004] A Test Craft Symmetri loaded!
[LOG 11:59:34.033] Autogen thumbnail for S:/Kerbal Space Program/1.1_CleanForTesting/KSP_Data/../thumbs/default_VAB_A Test Craft Symmetri.png from S:\Kerbal Space Program\1.1_CleanForTesting\saves\default\Ships\VAB\A Test Craft Symmetri.craft
[EXC 11:59:38.484] NullReferenceException: Object reference not set to an instance of an object
UIPartActionController.SelectPart (.Part part, Boolean allowMultiple)
UIPartActionController.HandleMouseClick (UnityEngine.Camera cam, Boolean allowMultiple)
UIPartActionController+
.MoveNext ()

No issue doing the same for part not placed by symmetry
[LOG 11:58:57.304] A Test Craft w/o Symmetri loaded!

Fixes/Workarounds:
Attach engines one by one, use one symmetry.

Other Notes/Pictures/Log Files: See attached