in ADT 3.3.

I've placed 24x24 cols, and strung walls between them.

Then, I've inserted windows to completely fill the wall between the columns.

When I select with a window and move the whole building plan, everything moves except those walls between cols that are filled in with windows. And the windows disappear.

If I select using "all", it selects and moves EVERYTHING.

What's up with that? It's rather annoying.

If I leave an inch between the last window and the col, so you can see a bit of the wall, this does not occur.

Any help would be appreciated