Factorio Forums

What did you do?
1. Placed an underground belt entrance and exit in-line.
2. Created a blueprint of this
3. In the "set up new blueprint" screen or opening the blueprint after saving I selected "upgrade items and entities in blueprint" and "default upgrade"

What happened?
Both underground belts are transformed into entrances of the upgraded type

What did you expect to happen instead? It might be obvious to you, but do it anyway!
Underground belts retain their orientation when upgrading.

Does it happen always, once, or sometimes?
If the underground belt can be upgraded (ex. yellow or red) then this occurs every time. Orientation does not appear to matter.

Before upgrade: After upgrade: Most likely related to:
viewtopic.php?p=681345
But still occurring on 2.0.68

Thanks for the report. Issue is now fixed for 2.0.69.

@boskid has this also been fixed for Deconstruct and then undo? The same issue occurs then.

pjr wrote: Tue Sep 23, 2025 3:34 pm @boskid has this also been fixed for Deconstruct and then undo? The same issue occurs then.

Are you sure you are experiencing this behavior on 2.0.68? It was present in 2.0.67 and fixed in 2.0.68 by 130977

I was still on 2.0.67. I upgraded to 2.0.68 and now starting factorio causes an OS freeze and crash. I've opened a different ticket.