There was an issue with saving detailed race lap data between around 14:00 GMT and 19:00 GMT.
Once the issue was brought to my attention, the issue with it not saving was resolved.
Only races from 19:00 GMT will have the detailed laps working.
For all the races that failed to save lap data I will do a recover and re-save tomorrow morning, so the data should be there by the evening tomorrow.
The races that had missing detailed lap data, should now show the data correctly.