I started playing RRO on TSW2 last night. I played with the 422 for a bit and completed 3 services but I noticed I never got the Lightweight Speeds trophy for exceed 70km/h. I have this for 2020 but it's bugged here.
I had this problem me too. Sadly 422 was already available before they added the 70km/h trophy so it's easy that you already used it in another route and reached 70km/h before trophy was available. The solution is to backup your save on cloud or USB stick, delete it, begin with a new profile and take one of the 422 services and go for 70km/h, the trophy will then pop. Copy back your save to go on.
I have the solution here. It's bugged. If you do 160kph you will get it! Weird I know. I took it on Schnellfahrstrecke and gave it a blast and got the trophy
Another solution try With New another player profil And sorry for 5alex.j.c. It's actually 70 km/h And sorry for my picture in french but it's my langage ^^