iOS 26 - SKOverlay Not Opening Custom Product Page instead opening default product page

Issue: SKOverlay configured with a Custom Product Page identifier opens the default product page instead of the custom one on iOS 26. This works correctly on iOS 18 and earlier.

Details:

• Custom Product Page is published and valid in App Store Connect
• customProductPageIdentifier is correctly set on SKOverlayAppConfiguration
• Same code works fine on iOS 18 and lower

Code:

- (void)presentSKOverlayInWindowScene:(UIWindowScene *)scene {
    SKOverlayAppConfiguration *config = [[SKOverlayAppConfiguration alloc] initWithAppIdentifier:@"my_app_id"
                                                                                         position:SKOverlayPositionBottom];
    config.userDismissible = YES;

    if (@available(iOS 15.0, *)) {
        [config setCustomProductPageIdentifier:@"my_apps_custom_product_page_id"];
    }

    SKOverlay *overlay = [[SKOverlay alloc] initWithConfiguration:config];
    overlay.delegate = self;
    [overlay presentInScene:scene];
}

Are there any known iOS 26 changes affecting Custom Product Pages with SKOverlay, or is additional configuration now required.

Thank you