That could be a problem, though I'm pretty sure it doesn't relate to yours.
I strongly advise against using polish to "clean" cartridges. Polishes are abrasives that wear down slight layers of the surface their intended for away to buff out scratches and other dinks. Using that on the thinly plated cartridge contacts can strip that gold plating away, exposing the raw (nickle?) contacts, which can cause more harm than good, such as hastened oxidation. I imagine overuse of Brasso could even wear down the contacts themselves.
Just stick with alcohol for standard cleaning, and use erasers to clear away thicker grit and dirt on the contacts. I'd only recommend polish for extremely oxidized and damaged contacts, but even then, it's not to different from using extremely fine sandpaper. In fact extremely fine sandpaper might not quite be as damaging as Brasso.
It's disheartening seeing so many videos and "tutorials" recommending Brasso to clean your contacts with, not knowing that it's damaging these games that aren't being produced anymore. It seems more and more I see or hear about people using Brasso on their games, and it makes me cautious about buying used games that might have worn contacts from a seller who didn't know how to clean the games properly.





 
 
					
					
					
						
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