Factorio Forums

I have been collecting a variety of different weird behaviours in the smart belting in this version. For some of them I am not sure if they originate from the same "bug", so they are in this post grouped together, I hope that is fine.
They are recorded with an overlay on, so what I did should be readily available.



The bug results in unneccessary belts, broken underground, wrong rotations and even wrong directions of belts (how it can flip the direction of the belt that I am currently holding is beyond me), half undergrounds, etc.

number 1:
a belt is used as an obstacle. The belt goes perpendicular to the dragged belt. Then i smart belted over it and after that dragged belt over it again and doing it fast. this breaks the ug and places unnecessary undergrounds further down the belt.
expected: the same result as before i dragged belt over the smart belt.

number 2:
I replaced the ghosted ug with my belt and dragged quickly back and forth. This seems to be the same behaviour as number 1.
expected: not getting those weird gaps in the belt and the underground ending up in the same way as before i "reapllied" the smart belt.

number 3:
Here i also replaced previously placed smart ug. similar to number 2 and 3
expected: not placing the unnecessary ug, not breaking the ugs, not leaving a belt tile "above" the underground section.

number 4:
Similar to numbers 1 through 3. Except that now the belt direction gets changed as well.
expected: not reversing the belt direction. and same as the above, simply "reapplying" the smart belt.

number 5:
No undergrounds get placed when dragging up, but it does when dragging down
expected: I would assume that the underground gets placed when dragging up, same as it does when dragging down.

number 6:
When upgrading from yellow undergrounds to red undergrounds it places an extra underground once again.
expected: simply upgrading the belt and underground belt to red belts. and same as above, not placing the extra undergrounds and therefore not breaking the previous ugs

number 7:
same or similar to number 6 but doesnt fully replace / upgrade the belt. and i upgrade the belt to red. take notice in the change the direction, which might be the cause to do with the missed belt "above" the undergrounded section.
expected: well, not that.

number 8:
here it correctly upgrades the belt but unnecessaryily removes belts once again

Can confirm I encountered all of these, even while playing casually.

also because i forgot to add:
https://www.twitch.tv/antipatience/clip ... o1cYlfSwr5

I'm also getting similar behavior just casually playing. Didn't investigate further but was annoyed more than once by this weird behavior. Some fixes or redesign is definitely needed.

I want to underline how bad the smart belt situation is right now, basically I cannot drag a single belt through the base anymore without checkign for every single crossing afterwards. It's takes the fun out for me as I encounter an error cause by this like every 5 minutes. I really hope this has high priority. Its by far the worst issue with the game as of now and subjectively became much worse as of recently. Dragging nay belt backwards seems specifically terrible right now.

Meanwhile these issues are fixed, consider turning it off ?

(Yes, the two options look to be back in, seemingly merged into one ?)

2.019

in 2.0.19 i found two similar bugs:

also: when dragging over ghosted ug with an obstacle the exiting ugs are not placed (version 2.0.31)