Not ECML related (instead related to the issue at Edinburgh) but Avanti's 9M62 looks to be starting at Glasgow Central rather than Edinburgh.
Observed large passenger numbers onboard 9M62 at Glasgow, probably to do with cancelled trains prior. Left about 5 mins ago.
RTT has it starting at "Carstairs South Junction", probably because that's where it picks up the path. Albeit late.
Real-time train running information for 9M62 1919½ departure from Carstairs South Jn to London Euston on 02/11/2023. From Realtime Trains, an independent source of train running info for Great Britain.
www.realtimetrains.co.uk