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Discolouration, but only a on a few random pieces?
(ani.social)
Just moved my space shuttle set after it sitting on a shelf for a coupe of years and noticed that exactly 3 pieces have turned kind of yellow-ish.
Especially the one on in the wing seems odd. Anyone knows what causes this?
It can be even worse. One of our club members built a model for an exhibition and bought a large amount of white 1x4 directly from LEGO for this. A few months later, a few of those bricks turned yellow, while the rest is still white.
I have no idea why LEGO QC still does not get this under control, the issues with white are there for years now.