"Marquee up" doesn't work at all

“Marquee up” doesn’t work at all. It just shows the text that is supposed to scroll up. Left and right do work as intented (it seems) when using it from the template. It shows that every should be working when previewing the draft. But on the player it’s just static.

V4.0.6 docker version
Player is Windows (dotnet) version

Seems like a full restart of the player made it work for some reason.