PC Spirit Of Steam Mastery: Prepare A Loco For Service. Bugged?

What am I doing wrong? Completed two of these timetable runs but it still doesn't count.

 

This one didn't do the trick either...

 

I'll give it a try.....

 

You're not doing anything wrong. Does not register as complete for me either.
Platform: PC, Steam

 

If these services don't count, then which one(s) do? How am I supposed to complete the mastery?

DTG Matt I believe the descriptions of the mastery requirements and the timetable services could use a little more consistency, so it's more clear to players what they need to do.

 

I don't know how it works.....

You just complete as required and get that achievement?

 

Thing is, it's not clear what is "required", as the services I expected to qualify, didn't trigger the mastery. Which means that either mastery is bugged and should've triggered, or that I've been playing the wrong services (and mastery description not being clear enough).

Nobody seems to know...

 

This one seems to have done the trick, but I still think the mastery description should be a lot more clearer on which service(s) it wants you to do.