US State Highway and Interstate signs don’t render in CarPlay

iOS 18.2 Public beta iPhone 15 Pro Wireless CarPlay Chevrolet Bolt 2023 Issue: the glyphs for US highway and internet signs are empty when rendered on the CarPlay main app and multi view modes. The Imgur links contain screenshots of this issue. Surprisingly enough, green exit signs render correctly.

I haven’t restarted the app yet due to being on a road trip. Will attempt that after submitting the report.