Edit: For some reason it set Nauvis as a filter... Set it to Vulcanus and it worked again. Can't delete this sorry.
To reproduce bug:
Set the turbo/green loaders as a request on a space platform. Be orbiting a planet [I think Vulcanus] that can produce them, set rockets to standard auto load.
The request is greyed out and won't ever be fulfilled. I have 3600 on the planet, requesting 500 and not a single one will come up. I have to manually put them into rockets.