I am sure it happemed already in production, these parts were delivered already "contaminated".
No biggie, though, while one can grease them a bit if problematic.

Also, I don't want to hype this problem up too much, before it is clear if all models are having it.
And Norev are aware of it and the next batch will be different, I am sure.

My only ereal concers ist the lack of black paint on the rockers, and the headlights which are too low in their housings.
Otherwise a striking model with many features, carpet, awesome shape and great stance.