CNTabBar is not rendered well on iOS 18.3.2

[huycozy]

It renders well on iOS 26 or 26.0.1. However, when I open app a lower iOS version, it's transparent and can't interact with items:

Code in implementation:

CNTabBar(
        items: [
          CNTabBarItem(
            icon: CNSymbol('house.fill'),
            label: l10n?.home ?? 'Home',
          ),
          CNTabBarItem(
            icon: CNSymbol('testtube.2'),
            label: l10n?.tests ?? 'Tests',
          ),
          CNTabBarItem(
            icon: CNSymbol('chart.xyaxis.line'),
            label: l10n?.results ?? 'Results',
          ),
          CNTabBarItem(
            icon: CNSymbol('gear'),
            label: l10n?.settings ?? 'Settings',
          ),
        ],
        currentIndex: currentIndex,
        onTap: onTap,
      )

[Ngochiendev]

same issue