If you look further in RTT 047 started off from Eastleigh early morning and was eventually scheduled to arrive back there late evening. As you say it was caped at Eastleigh mid afternoon so is probably back in the depot. The similar run on Friday is shown as cancelled. Maybe evidence of a new fault tying in with the rumours.
Waterloo grand tour eventually back to Staines Up Loop, cancelled at Eastleigh after running late
Real-time train running information for 5Q48 1417 departure from London Waterloo to Eastleigh on 13/10/2022. From Realtime Trains, an independent source of train running info for Great Britain.
www.realtimetrains.co.uk
Reverse at Staines, long tour right out to Bournemouth to return to Eastleigh yard at 2343 - all cancelled
Real-time train running information for 5Q52 1724 departure from Staines Up Loop to Eastleigh Trsmd on 13/10/2022. From Realtime Trains, an independent source of train running info for Great Britain.
www.realtimetrains.co.uk