repeated build button?

[davidlallen]

I have a weird problem with the mod I am attempting. I have cloned a unit to create a new unit, with the temporary name "AAInterceptor". As shown in the screenshot, the unit shows up twice in the build list. I have not accidentally duplicated the unit definition. I have added another new unit AAChopper, which as far as I can tell is identical. But that one only shows up once. The unit shows up duplicated in the city screen also; it is not just in this popup. It only shows up once in the civilopedia.

Any idea what would cause the button to be duplicated?

 

[davidlallen]

Well, I don't know what I did, but the problem is gone. After a number of edits, I removed all the unused units (90% of the vanilla units) and changed a few other things. The duplicate buttons are gone. Shrug.