I have solved my problem. There was nothing wrong with LTN - I just set request threshold as a positive number expecting that a station will be requesting items until this positive number is achieved.

Phew!

Also - thank you Optera for this mod! I love it so much. And thanks for replying.

Settings for LTN update frequency are in map settings, see the Manual under Mod Settings.
I tried changing it in the first place, but it has no effect on the game. Still, one dispatch every 30 seconds.
Currently I have update frequency at 1 and updates per tick at 50, and theoretically I won't ...

Hello!
In my factory trains leave depots only by one every 30 seconds. How do I increase this frequency?
I've attached the save file, all parts are connected properly.

I found this thread with a similar issue:
https://forums.factorio.com/viewtopic.php?t=51081
Optera recommends editing dispatcher ...