Spotted that earlier. 36447 started off the journey then it swapped to 11120 outside Stonegravels. The bus had only just started in service 40 minutes earlier so it seems unlikely the driver would need relieving that early in the duty. Possibly just a ticket machine swap?11120 (E400MMC) is reportedly running a 90 service. For those who don't know, the 90 goes under a very low bridge in Barrow Hill (10ft 3in). This is a mistrack, I will try and find out what it is shortly
There seems to be a few delays on the 90 today as well, the 8:03 from Somersall only ran part-route, starting late from the depot. There is also a road closure in Barrow Hill that hasn't been flagged by Stagecoach on social media, which is adding 5-6 minutes to the running time and means some stops are unserved.
(As an aside, Stagecoach very rarely post updates to Chesterfield services on their social media, which makes it tricky to know when there is disruption)
Two of the loan vehicles are in the new livery - could this be to get a wider range of opinions?