The amazing switching texture Phenomenon!

I'm making a CTF map and I am having a small
problem with textures.

The map is symmetrical. To build the map, I built
half of it then copied and pasted the other half.

I gave all the brushes on one side a GROUP tag of
"Red-Base," and I grouped the other side and gave
it a GRUOP tag of "Blue-Base."

The problem is this: Whenever I change the textures
on one side of the map, the textures on the other side
change as well. This is a problem because I would
like the Bases to be easily identifiable as belonging
to either the Red or Blue teams.

Looking at two (corresponding) brush properties I find this:

Brush (Red)

Events
-----Event---none
-----Tag-----brush

Object
-----Class----------Class'Engine.Brush'
-----Group----------Red_Base
-----Initial State--none
-----Name-----------Brush429

Brush (blue)

Events
-----Event---none
-----Tag-----brush

Object
-----Class----------Class'Engine.Brush'
-----Group----------Blue_Base
-----Initial State--none
-----Name-----------Brush80

I have a work-around for the problem and that would be to not "BUILD" the
map after the Finale retexturing, as the texture change only happens
when I "Build."

Any Ideas?

I've just been informed by Wanderer that the problem I described
is a know UEd bug.

I just upgraded to v.432, and I am hoping that this bug was
addressed in the patch. Otherwise I'm stuck with the
"work-around."

As I'm sure your all breathless with anticipation, I'll post
whatever I figure out.

Well I've tried it with 432 and it still does the same thing.

I tried Rebuilding the gruops individually, and still the problem persist.

I guess I'm stuck with the work-around I described above.

For your future reference, this problem can be avoided by not "cutting & Pasting," use the brush/actor duplication feature in it's place.