[Bug]: Making artillery bombardment to any site in temporary map and leave the map before counter action raid arrival

[alreShan]

Complete the template below. Reports that do not follow the template will be deleted.
Title should be: [Bug]: (Short description of bug)

Specifications
Please provide the following.

Rimworld version: latest 1.4 or 1.5, both can reduplicate same bug
Combat Extended version: 15.6.0.0 or older
Combat Extended source (Steam, GitHub, etc.): Steam or from HSK mods pack
Your operating system: Windows
Your mod list:
Harmony
Core
Combat Extenteded

Description
Make artillery bombardment (by mortar or so) to any site in any temporary map, until see the message says counter action raid incoming like "A group from Gwowe-Pig is planning to raid NewArrivals soon in retaliation for recent events." , then leave the temporary map before counter action raid arrival. Wait a while, will constantly get errors in a certain frequency.

Expected behavior
IDK, perhaps get caravan caught by ambush incident whom made bombardment while still traveling in world map?

To reproduce
Roughly as Description part.

For example, get into a site with temporary map (e.g. dev action menu → Generate quest... → balablala) ,


spawn some mortar and shells then begin bombardment to any site by gizmo "attack world tile"


till get the message

then just leave the temporary map in whatever ways

then just wait for errors

Screenshots & log dumps

I notice that this value change once error pops once

You can stop error by destroy the site been bombed (whatever dev action menu "destroy site" or in normal way)

Complete the following checklist
I hereby verify that I have done the following:

• Confirmed that my game version and load order are correct.
• Confirmed that I am running the appropriate and most updated version of Combat Extended and required compatibility patches.
• Confirmed I am not running any mods with known incompatibilities with Combat Extended.
• Disabled Combat Extended and attempted to reproduce the behavior without success.