Factorio Forums

During my stream on Saturday I found an iron ore patch which had not had the trees removed, despite checking the "Remove Trees" option in settings. I'm also running the Alien Biomes mods, so could there be a possibility of it preventing tree removal??

It's the first time I've encountered this behaviour, and the other generated ore patches on the map are clean of trees.

This link takes you to a Twitch highlight of the discovery
https://www.twitch.tv/videos/522253501

I'm also running the Pyanodon mod suite - could they have an effect??

It shouldn't be possible unless that tree is not an actual tree but an entity.
I'd need a save to sync the mods and check whats going on.
It can be an empty save and some idea where the buggy patch is located - if issue is reproducible I should be able to figure out why those trees were not deleted.

Here is the Google Drive link to a save which should open with the Engineer in the relevant area.....

https://drive.google.com/open?id=18O-Mp ... DGY4ERbWQw

There are no trees visible in map view, which suggests to me that it is something to do with Alien Biomes specialist tree definitions.

I know that KoS had a similar difficulty in her DyWorld playthrough because the Alien Biomes "Trees" weren't actually trees as defined by Factorio.

Let me know if you need more information, or want me to send the mod settings file.

This is caused by RSO cheating when it generates ore patches.
It seems I'm spawning ore on not yet generated chunks - that means that tree removal happens when there are no trees there yet. They are then spawned later on when chunk is properly generated.
I think there is a way to fix this but I'm a bit uncertain of what could be consequences of that. I think I can force generate chunks before spawning ores - that would increase the stutter a bit and might risk RSO generating chunks constantly if ores overlap to much and create big "land" of ore. No idea if that can happen and I'm not sure how to protect against that.

PS.
I think I broke Factorio trying to fix this

It's at worst a minor annyoance as far as I'm concerned.

Please take all the time you need over the fix, particularly if it's liable to break the main game

And, if it proves to be unfixable for the time being, that will be fine.