Set swap gone wrong, 2 sets allocated! Been seen quite a lot on
LM▸ stations with Virgin Pendolinos, couple of 18 and 22 coach trains been seen!
I wonder how badly Darwin tripped up on that one...I imagine it could figure out the "this train has ..16.. coaches" but it may have messed up on First Class

Nothing to do with Darwin, Darwin deals with the timetable side of trains (ensuring all information sources match) - information and notes 'attached' to trains are still down to the individual
TOCs▸ CIS▸ systems - including announcements and screens.