PC Weird "kilometrierungstafel" On Hamburg-lübeck

Yesterday, I tried this scenario: https://creatorsclub.dovetailgames.com/mods/2065

And then I saw this sign:

This does seem like a bug. Has anyone else this issue? That's the only sign I found on the route - the others seem to be fine.

There is also a video of that, I'll post the link not to do any kind of self promotion, but to make it easier to reproduce:

Timestamp: 43:50