Stellaris - is_neighbor_of isn't evaluated properly

[slv]

Description
is_neighbor_of isn't evaluated properly

Game Version
2.3.0 [e100]

What version do you use?

Steam

What expansions do you have installed?

Do you have mods enabled?
No

Please explain your issue is in as much detail as possible.
Neighbors aren't evaluated properly.

I attach two screenshots (one mine, another from a different person) of a neighbor mapmod (every green country is considered to be a neighbor for some reason). There are no gateways/wormholes causing this issue.

While this issue may look innoculous, this bug has a noticable negative effect on the AI. Normally countries get "End Threat" CB only on neighbours and since the bug causes everyone to be a neighboru of almost everyone Purifiers/Exterminators frequently end up stuck in a war with people across the galaxy (the game still thinks they are "neighbors").

This has negative effect on diplomacy (a lot of interactions require target not being in a war and the war against a purifier across the galaxy has hard time ending) and AI behavior (AI isn't allowed to colonise during wars).

This is a cause of this bugreport (https://forum.paradoxplaza.com/foru...n-enemies-they-cannot-reach-2-3-e100.1185592/).

Steps to reproduce the issue.
Open a game with discovered and populated galaxy, open neighbor mapmode, check neighbors of countries.

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[Peter Ebbesen]

Good catch.

 

[EvaM]

Hello,
Thank you for your post! We are aware of this issue and have a report logged on it already.