AdSense Violation Center flag on only one localized URL

I received a notice in my AdSense Violation Center for a specific URL on my site, but the site uses localization (e.g., /page, /fr/page, etc.).

The reported URL is only one localized variant.
I already configured my website so that the exact flagged URL now returns a proper 404, previously it'd dynamically remove adsense codes on the page, but I changed to serve 404.

My question is:
1. Does AdSense expect me to remove ONLY the specific localized URL that was flagged, or do I need to remove every localized variant of that page even if those were not flagged?

2. How long does it take for Adsense to remove the entry as fixed, is it immediate or approximate number of days

Has anyone dealt with this before?
Would appreciate any insights from people who’ve had similar notices.