Stage 4 - 82kms, but Steven off the radar

As I write, I have no news of Steven and cannot report on how or where he is.
Today's Stage 4 was the toughest of the race at nearly 52 miles. The elite runners were expected to, and did complete the route in little over 7 hours, with the final finishers of the day (and night) expected to take up to 30 hours.
The mystery of Steven's whereabouts will hopefully be down to a technical fault with the live tracking system.  According to the organisers, the top 50 male, and top 5 female finishers up to yesterday's cumulative results were to start later than the rest of the field, the practicality being that they would catch up and pass the slower competitors. Steven was in 37th, so on that basis he should have gone off in the later group scheduled for 11.30am (11.45 in reality). The other 700+ were scheduled for the off at 08.30 (08.44 actual).
Looking at the first couple of check points this morning on the live timing results web page, it seemed that Steven had started at 08.44, reached checkpoint 1 about 10.26 and checkpoint 2 around 12.05 or so (can't be sure because there are now no records of anything for Steven today), and he was setting a slightly slower pace than the day before as he was down in about 70-something, later dropping to about 103rd.  Initially it seemed he was going for a slower pace knowing how much mileage he had ahead of him on this gruelling stage, which is daunting even for the experts.  A later check on the website showed some confusing information as if he'd then started at 11.45.  This could not be possible if he reached checkpoint 1 by 10.26. At checkpoint 3, as I recall, the arrival time showed he should have been somewhere about 100+, but slower competitors times were showing positions ahead of Steven. Since early afternoon today, I cannot find any record of Steven in today's placings, and just hope there is a simple answer tomorrow.  There is a daily list of  runners who drop out, but Steven's name does not appear there either (at least not until the time of typing this).
Of course, no communication from Steven, but then if he is OK and doesn't realise there is any concern at home, why should he?
I have sent him the usual daily email,  and hope it reaches him ready to tackle the final two stages.
Watch this space...  will update when further news of his whereabouts is revealed.

P.S. apologies to anyone who read this between about 23.30 hrs and 23.37hrs on Wednesday night;
After writing and posting the above, I made a final check on the live results and miraculously he's appeared - AND FINISHED THE STAGE at 22.15hrs (about the time I'd logged off before returning to write this and send him the aforementioned email - he'll be wondering what all the fuss was about!