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Sorry. I had this bug now several times and I want to get rid of it, but I'm not 100% if it is a Factorio bug or a bug of the many mods I use, because of the random nature of this bug: I cannot just remove a mod and look, if it was that, cause the error won't repeat then (but at any time later). Maybe in the end it's because I use a Mac - who knows?

So here is the description: Sometimes fluid trains forget to unload. They come to a fluid train unload-station, the pumps connect, but the tanks are not emptied. (And yes: The station-tanks in this picture are only about half filled, enough space to put oil from 6 trains in.)

Looks like so: I have a save here:
https://drive.google.com/file/d/1yFp9gs ... sp=sharing

After about 30 seconds this train arrives here. Sorry for the size - it's 85 MB and uses over 100 mods.

PS: I tried to figure out, if it is caused by train specific mod (e.g. removed realistic train accelleration mod and such stuff). When I change some mod settings or do any other smaller or bigger change to the game, the error cannot be repeated, but happens at any time somewhere else. But I'm far from saying that it is a mod., which causes this, cause every test-run takes about 15 minutes.

PPS: I hunt for this bug now several month, and in 0.16 this bug brought my hair to fall out, cause it happens all the time, that sulfur acid was filled into crude oil. With 0.17 this cannot happen anymore, but is still quite irritating. For those, who interested: I use the LTN-mod and there are two depots for Liquids (the stations names are "DepotL"). In them I build an alarming system, which fires, when a non-empty train comes in. With that I could go back to the moment, when it happens.

Is this still the LTN leave station if empty but tank wagon isn't problem?

#fluidsrounddown #changefluidrounding #fluidsshouldbeints

steinio wrote: Sat Jul 20, 2019 9:29 am Is this still the LTN leave station if empty but tank wagon isn't problem?

#fluidsrounddown #changefluidrounding #fluidsshouldbeints

No. The train doesn't go to the stop properly, so it is in the wrong position and the pumps don't connect. Here is a save literally ticks before that happens: https://drive.google.com/file/d/1WkQ1aK ... sp=sharing

Thanks for the report.
It happened because a mod was messing with speed of breaking train. It should be fixed for 0.17.59

Thank you.

Just for interest: Which mod? Was it https://mods.factorio.com/mod/OverloadedTrains ?

I haven't checked yesterday, so I took a look today and yes.

You wrote it eventually happens without the mod too, which I am not sure why, but I am confident the fix will apply to those cases too.

I checked that twice: I turned the mod off and that error happens then about 15 minutes later from that Save (with 0.17.58).

Maybe the mod changes more, which is not completely reset after removal?

I’ll check it agin with the current version.