This seems to happen on the 05/06's
It JUST started happening to mine... 2005 HSE. Know that when you replace them, there are 2 colors (the brunel grey from 05/06 and the silver from 07+). So you'll want to either replace both LAND and ROVER with the new color, or get the old color for one, the other or both.
*** The color diff is very slight but there is a difference. It seems like the 05/06 color is affected by the peeling more so I am going to replace both of mine with the newer color.
Mine were 100% perfect until I went thru 1 touchfree carwash this winter to get the salt off, I think the chemicals did it. I noticed it the next day on the top of the R O V E R letters. grr.
Seems to be a really common problem as alot of LR3s I see on the streets here in Nashville have this happening (and a year or two ago I did not noticed it)