I'm fairly new to this game, and I tried purchasing the RGX 11Z Pro skin bundle with some extra money I saved up.

Now, I'm liking the skin so far but would really love to use the blue color for my Vandal. I purchased the 4 levels of upgrades up to the finisher expecting to be able to select between the color variant. But oddly enough it says "MAX LEVEL REACHED" and won't allow me to equip nor purchase the blue color variant.

Is there something I'm missing here? Appreciate the replies, thanks!