[boskid][1.1.39] Crash placing modded powerpole/lamp: "Call to disconnect network that is not connected"

[drmason13]

I'm in a Sandbox scenario map with this mod enabled: https://mods.factorio.com/mod/LightedPolesPlus version 1.7.1, as well as power-grid-comb 1.1.0 and a number of other seemingly unrelated mods. I wasn't using the comb while experiencing the bug, though I had used it previously on one of the networks involved.

I have attached two log files, both from separate but similar crashes.

Situation was the same for both of them, after loading from autosave and playing as normal a crash occurred while placing and dragging the lighted substation or lighted big power pole (not 100% sure which sorry!). The crash causes the normal crash report popup, no need to restart the PC or anything.
I've also attached the save.

I think it could be related to joining electric networks, as that was what I was doing the first time: connecting a bunch of power poles to the south to the main "clump" of solar panels.

[drmason13]

I have a theory of steps to reproduce.
The last time this happened I noticed that I was fast replacing a substation ghost with a lighted substation at a point which would join two separate power networks into one.

[Loewchen]

See as well: 100837

[boskid]

I was unable to reproduce any issues here using 1.1.57. If you have a reliable reproduction i could take a look at it but at the same time i am aware that there were changes made for 1.2 that may already fix this issue without even knowing what it was.