Hell yeah brother, Im the best. I found a bug in this world'sbest game :D

ps. I think the cancelling thing is intended, so only the real upgrade will be fixed.

Yeah, I read that, but this is not cancelled upgrade. This is a double upgrade. Or If u play modded, u have 4-5-6 different belt speeds, so......

So, i think this is a bug. Actually I play Space Ex+ K2 , but I think its a core mechanism so...
I have an upgrade planner for belt. Everything yellow to red, then every red to blue (splitters, undergrounds too).
All the color upgrades in one planner.
The problem is, if I select a pair of ...

Yeah turning off the temp stations mod solved the problem completely.

In train window i look after manual mode trains, and in every 10-15 sec im getting 1-2 new trains in manual mode. They have the schedule but they are waiting in the loading station fully loaded turned into manual mode. If i turn them back to automatic, they start moving to the unloading station, but ...