VAB Subassembly Bug

[MathmoRichard]

I have a subassembly and when I click on it, it is then stuck on my pointer forever. The only thing I can really do is click exit.

The console is saying this

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

at EditorLogic.detachPart (.Part part) [0x00000] in <filename unknown>:0

at EditorLogic.clearSymmetry () [0x00000] in <filename unknown>:0

at EditorLogic.<SetupFSM>m__B3 () [0x00000] in <filename unknown>:0

at (wrapper delegate-invoke) Callback:invoke_void__this__ ()

at (wrapper delegate-invoke) Callback:invoke_void__this__ ()

at (wrapper delegate-invoke) Callback:invoke_void__this__ ()

at KerbalFSM.UpdateFSM () [0x00000] in <filename unknown>:0

at EditorLogic.Update () [0x00000] in <filename unknown>:0

on repeat, independent of my actions, many times per second.

http://s000.tinyupload.com/?file_id=07254333479823563533

There is only one unusual thing that has happened today...

I've had this working subassembly for a while now. Today I updated some of them and decided that the subassembly in question "Liquid Booster 2" should replace "Liquid Booster" which in turn should be scrapped. So I clicked the old "Liquid Booster 2", and then clicked on "Liquid Booster", it asked about overwriting, and I confirmed. I then created a new replacement for "Liquid Booster 2". The current "Liquid Booster 2" works just fine.

I swear I get more bugs than anyone else

Edited June 9, 2015 by MathmoRichard

[Streetwind]

You should try posting this in the Support forum section, since it apepars to be a technical issue.