Stellaris - [3.1.2] Sector Assignment Calculates Incorrectly

[Arrnea]

Description
[3.1.2] Sector Assignment Calculates Incorrectly

Game Version
3.1.2

What version do you use?
Steam

What expansions do you have installed?
Synthetic Dawn, Utopia, Leviathans Story Pack, Apocalypse, Megacorp, Distant Stars, Ancient Relics, Lithoids, Federations

Do you have mods enabled?
Yes, but this issue exists without them.

Please explain your issue is in as much detail as possible.
Systems that are 4 jumps away from a sector capital are sometimes not added to the sector. Probably because there are multiple paths between the capital and the system in question, some which are 4 jumps or less and some of which are 5 jumps or more, so the code gets confused.

In the screenshot attached, "Eye" is the capital of the sector (and of the empire as a whole) and the system "Shashamar" is four jumps away (Eye -> Monboth -> Blondei -> Bajiol -> Shashamar) but is not added to the same sector when it should be. My guess is it is calculating distance by some other route (eg. Eye -> Monboth -> Blondei -> Kosk -> Witris -> Shashamar), which is less than ideal.

Steps to reproduce the issue.
???

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[Arrnea]

Come on Paradox. This bug is so annoying that I had to make a mod to remove sectors altogether. The least you could do is acknowledge that it is a thing.