Cl40: 15 in the 40 complete 15 services using class 40 NTP I have finished the whistle while you work achievement, for 400 miles by replaying the 08:48 Manchester to Leeds express, that stops only at Huddersfield, that should have counted for about 10 services if it counts repeats. Now I have been doing nh08 van collection, saving and loading before coupling at the end. Done that about 10 times now still nothing, I saved and loaded for an oakville route achievement that said finish 20 services worked fine Does it have to be 15 different services?
Seems to be working for me. Just did the park loco short service a few times. Each time the achievement tracker increased.
Might even need more than 15! I did over 20 on 2020 before this achievement unlocked and all but 2 of the ones I did were gold medal runs