That's intended.

I'm confused :?

Right now, my LTN requests 1000 iron plates for the factory, so a train with 1 wagon goes to my smelting area, to get these. Its schedule for this stations is :

Cargo (Iron plate): 1000
AND Inactivity 2s
OR Elapsed time 300s


So, the station holding more ...

Hello ! I just noticed a bug in the last release : the 2 seconds inactivity condition is set with AND instead of OR, so my trains actually wait to be full before departing.