Is anyone else having this much problems with flashing blue accessories in pets?

[Marhis]

Lately I put a bit more attention on flashing blue accessories, and I think I've spotted a sort of pattern. Apparently, my sims with flashing blue stuff (earrings and necklaces) have one or more of:
- custom hair
- custom eyebrows
- maxis eyebrows but with different genetic color (e.g. black eyebrows on genetically blond sim)

All the sims with binned hair and maxis eyebrows genetically matching, if they have blu stuff at start, a simple makeover with no other changes seems to fix the issue forever; on the other hand, sims with custom hair and/or eyebrows may retain the flash crap, or it will return later.

So far, the only exception were 3 drow sims, who have custom hair, custom eyebrows and custom skintone (genetic 0): they didn't have the "flashing blue 2: the return" issue.
All my other sims have no custom skintones, but only default replacements.

I don't know if all this makes sense, and I have not yet deepened the tests, but it might be a possibility.