I am having the exact same issue. It has been about a month since I first clicked submit for review. :( I took numerous tries to get this resolved but review board's reply was that I need to remove NSLocalNetworkUsageDescription keyword from my info.plist file. lol
Long story short, build settings was holding on to the NSUserTrackingUsageDescription although I removed it from the info.plist file. Everything else seems to get synced up correctly. so I opened the project.pbxproj file and removed the following lines.
INFOPLIST_KEY_NSUserTrackingUsageDescription = "This identifier will be used to show ads that you may be interested.";
When I upload the new build and submitted it for review, it let me update the App Privacy. I am crossing my fingers. 🤞
