... bug_buffer_chest_weirdness.zip:
I've attached this save, where I could not produce the crash but captured weird behavior that may be related.
The bots are unloading items directly from the main inventory (not trash) into the buffer chest and then back into the inventory, or is that expected with ...

... stall. Build an endless loop that returns into itself and merges new items into the loop with a splitter, and somewhere on this loop is a filtered inserter that extracts spoilage from the loop and puts it into the trash removal facility (in my case: active provider chest to be carried away by bots)

... Latch will not move to On.

It is very very likely I am missing something simple... Just cannot place it.

Assistance please :)

Decided to use bots to dissassemble and re-assemble and same issue. Make power internally but won't send it out to the grid.

Played around with it a little more.
If I ...

... 476125562, the starting tungsten ore patch on Vulcanus appears to be inaccessible using transport belts.

It can only be reached using construction bots, which does not seem intended for a starting patch.

Steps to reproduce:
1. Start a new game with seed 476125562 on default settings.
2. Travel to ...

Personal robots can and will remove from guns, ammo, armor, the main inventory, and the cursor. Personal robots don’t interact with the trash inventory in any way: neither removing from or putting items into it. Items in trash slots don’t count for logistic requests.

So any expectation you may have ...

I'm gonna argue this one. Players have an expectation that personal roboport construction robots can only take from their main inventory. A precedent for this is that they can't take items out of your trash slots. Taking items out of your armor slot, or weapons or ammo slots, seems wrong. Those are ...

MOAIAP wrote: Fri Apr 03, 2026 8:11 pm

pioruns wrote: Fri Apr 03, 2026 7:22 pm Please add screenshots to your post as an attachment

Done!

Great, thank you! Now I can see what you meant in your post.

pioruns wrote: Fri Apr 03, 2026 7:22 pm Please add screenshots to your post as an attachment

Done!

Imgur is not viewable in some countries.
Please add screenshots to your post as an attachment, instead of linking them in random places.

... I know and will keep in mind that I cannot, while wearing a requested item, walk in range of my own roboport to the requester chest. (the network bots did not take my armor, only my own bots did for some reason).

Having said that, I would say it would be more "expected" to end up with an ...

If robots can’t take armor from the player then they also can’t count armor worn by the player for logistic requests. As in: if you request power armor and one is delivered to you + equipped, the robots would then deliver a second one and put it in your inventory.

Oh, thank you, I did not find it through search.

But.... seriously? not a bug?

... BUG: While flying over a cliff in fulgora with mech armor, if I "hand request" a mech armor to be put into a nearby chest, one of my constructions bots will remove my own armor, killing me in the process. In my normal (both while modded and also once mod-removed) save the bot then took my armor to a ...

You are placing the signals while the rails are already there? I'd need a proper screenshot or save to confirm, but if sounds like you're initially placing the signals rotated the wrong way. How are you placing them? Do you have a proper signal or signal ghost in hand or is it a blueprint of a ...

... When expanding the train network, I add the chain signals at junctions and rail signals at bypasses and mining outposts using construction bots.

Ascii diagram of two way junction.
+ is a chain signal. Ignore the periods (extra spaces were removed ...

So when in remote view, I cant view other parts of my base only where my character currently is so my own personal view range. Additionally sound of bots moving around and machines working completely disappeared. I cant interact with objects in remote view on Nauvis. Other planets seem to be working ...

... why can't we have trains, that just like the burner inserter, will have a little juice left. This will ensure that we don't even need to have the bots bring fuel, since this extra little "juice" will ensure the tains, from where they where build by bots, can go next to the fuel up station = we can ...

... they pick the first one on the stack that fits the criteria.
This is mostly likely a recently updated entity by nature but it hasn't to be.

Bots as they are are already a miracle and they worked hard on optimizing the shit out of them.

That said it would be a welcome behavioural change in ...

... legendary Prod3s with normal Prod3s.
Problem 1: While I didn't have enough legendary Prod3s for all the labs, I did have some of them, which my bots have dutifully placed. If I apply that upgrade planner to all the labs, the bots will replace those legendary Prod3s with normal ones, which is not ...