Thanks for the fix and the backport.

Here's the game that it occurred to Derek.

The actual discovery.
Then some investigation and discussion later in the run.

Oh and I had misremembered it was actually a copper stromatalite that caused the problem on this one.

In certain conditions bots will fail (or refuse) to build certain power poles on Gleba. This has occurred 'in the wild' to two different streamers in the last week or so.

It seems to occur when the polse is on a marsh near an iron stromatalite. My wild guess is that the smaller power pole hit box ...

To make it clear, as therax discovered since I got this from his mod, you can work around this when the blueprint being updated is stored in the player's inventory. The on_gui_closed event that is fired then has a type of gui_type.item and the blueprint is in event.item. Unfortunately the event ...