Need More Info Owned castle becomes neutral after being captured by the enemy

[Luminouscales]

How to Reproduce: Have your castle besieged and captured by the enemy.
Media (Screenshots & Video):
Notice how the enemy settlements on the right after properly marked as enemy, but this castle (that is freshly captured from my faction) is not, and so I cannot besiege it.
Version: beta e1.5.5
Installed community-made modifications: Party Management
Computer Specs:
OS: Windows 10
GPU: NVIDIA GeForce GTX 1060 6GB
CPU: Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
RAM: 16gb
Motherboard: H110M-HDV R3.0
Storage Device (HDD/SSD): SSD

Save file: http://www.mediafire.com/file/gow1cvm3wfozjpg/lag2.sav/file

Update: The issue seems to be different. I am not at war with the Urkhunait clan that has since been destroyed. This used to be the leading clan of the Khuzait, but after a few executions it fell to pieces, with only two phantom nobles still in it. I am at war with the entire Khuzait faction, but not with the Urkhunait, which prevents me from capturing their castles.



Notice how the neutral castles have the same emblem, and so belong to the Urkhunait.



Proposing a truce then starting a war again does not fix the issue.

 

[MArdA TaleWorlds]

Please note that we can’t support any modding-related issues. You can find more information about how to remove modifications here and more information about what we think about issues related to modding here.
If you can reproduce the issue in a new, un-modded and verified campaign please let us know!
Thanks for reporting and sorry for any inconvenience!