Gold plastic was like that for many, many years, almost every figure with gold plastic which wasn't made in the past few years will experience Gold Plastic Syndrome, it absolutely sucks but there's nothing you can do about it, some figures will just crumble in the box by themselves and nobody really knows why, the best explanation I've seen is the plastic and coloring are so poorly bonded that the structure is compromised with air gaps, making the whole gold part of your figure fall apart when you apply even the slightest pressure to it.
Welp. Your post made me google this. I never knew there was even a gold plastic issue, and there's an entire article dedicated to it on Wiki.
https://tfwiki.net/wiki/Gold_Plastic_Syndrome
I also happen to have some decades old Beast Wars figures with gold plastic. Haven't taken them out in decades, so I can only wonder how they've been holding up.
Yeah, and the parts in question are either spring tension points or retain the ratcheted parts. SOL on this one... eventually I'll try and fix it someday, but I think it's a lost cause overall.
That's awful. Can you take several pics of the other gold plastic areas to show the extent of the damage?
Thinking back, the Mass Produced RAY was such an awful choice for ThreeA. The Marines version would've been superior. As far as I can tell, there wasn't any gold on the Marines RAY, just flesh colored joints and musculature.