Red_Light_Camera_us-OH-Ohio.bmp was the icon name. I went into photoshop and edited the color to a slightly different shade of red... and it works now.
Odd that it worked fine on an older Nav version, but not on the newer.
Hi! Also, you can make your own custom icons, make sure they are in BMP format, and are the same name as the ov2 file (except for the extension, of course)
Ive done it , it works well