broken unit banners

I used to test my mod with unit banners turned off, but when I turned them on again I noticed 2 things:
-the disappaer/reappear quite a lot further away from the camera then they used to do
-they nolonger grow in size when they are very far away from the camera (so they become hard to see over large distances)

I don't have a clue how this happened. I haven't changed the banner models or textures recently. Does anyone know what could've caused this ?

apparently it was the -movie_cam parameter that caused this to happen

thank you all :)