This one is a bit odd, since I have the same setup elsewhere in my factory and it’s working there, but this one isn’t.
I have a Fit Window station feeding directly into a Fit Wing Mirror station, but the Fit Window says Waiting for Line. Direction appears to be correct… confused, but have save in case needed.
Figured it out - further down the line, after the Fit Wing Mirror station, one of the converyor belts was in the wrong direction - it was a bit confusing because it wasn’t the station that was attached to the conveyor belt, but the one before it that was waiting for line.
Yup. There will be new conveyor belt graphics in a patch soon which will make this a much harder mistake to make 
