I am not sure if this is the problem, let me explain:
I have installed RTR 1.9 ontop of my Rom TW Gold install (the dvd that installes BI to, and patches it all)
I am using the BI-shortcut supplied with the mod, as I allways have and the mod works just fine, And I DO get the nice superb custom formations buttons. So far so good, the only thing I don't have is the Sheild wall formation button, that one is a red square. (probably the same thing with schiltrom?)
Maybe this is what you meant, but it sounded like you thought I was using it on a vanilla BI install, and I'm not.
Maybe I misunderstood you?
EDIT: I just read the awnser from before about the Shield Wall button.
I use ony 1.9, this mod, 4tpy, lite music remix, and no other I think.
nothing that should have any effect on the shield wall button, still, since it was a button, and I never have had this problem before, and I just installed the new formation buttons for the first time, the only logical explanation to me was that it was this mod that caused the problem.
I believe that I have installed everything correct, it is not my first time