I’ve started the half-marathon training plan yesterday. Did the benchmark run which saved as Benchmark Run but Garmin Coach told me still needed to complete.
Followed various advice on this forum (save run as Training rather than Uncategorised AND reschedule/resync/reschedule /resync AND quit plan and start again). Did the Benchmark run again today. Exactly the same problem. So frustrating as keen to start plan and not keen to do a third benchmark run tomorrow.