The latest patch does seem to have corrected the problem.
More info:
Purple isn't the only color this happens with. I did some experimenting after hearing from other people and found the following:
Hazel eyes (sixth color, top row) shifts to pale green (seventh color, top row).
Gray-green (last color, top row) shifts to teal (first color, bottom row).
Blue-gray (fifth color, bottom row) shifts to light gray (sixth color, bottom row).
Dark gray (seventh color, bottom row) shifts to light brown (third color, top row).
Purple (last color, bottom row) shifts to red (eighth color, bottom row).
Problem affects male sims of all ages. Female sims completely unaffected.
I'd like to remember that this doesn't happen only with purple eyes. The new colors added also don't work on male sims and don't transfer trough genetics.
