Part Node Position Bug

[Wavechaser]

Not sure how it happens, but it's only found in reloading crafts in editors, like load it through the "Load" menu or reverting to VAB/SPH. The nodes of the part will appear at the upper edge of the part, and is not attachable to anything. The part itself can still be surface attached, though.
It's only found on Procedural Fuel Tanks and Monoprop Tanks. But I reckon it is also on other parts, I just didn't meet them yet.
Like this: http://imgur.com/2tGgykN
Or this:

This is awful and...frustrating, because you would have to rebuild every single part involved.