Recent calls not showing

Recent calls made and received are not showing in ‘Recents’.

I have selected ‘All’ in Recents, not just ‘Missed’. I’ve tried Settings > general > reset > reset network settings. I’ve turned phone on and off. I’ve deleted old calls from the Recents log to free up space. Still no luck.

I’ve seen this topic on older threads and didn’t find any further hints and tricks. Any new ideas out there?