Stellaris - Secret Fealty allies declares war on you in 3.4.4 227f

[youstas]

Description
Secret Fealty allies declares war on you in 3.4.4 227f

Game Version
3.4.4 227f

What version do you use?
Steam

What expansions do you have installed?
All of that above

Do you have mods enabled?
No

Please explain your issue is in as much detail as possible.
An AI empire, lets call it "empire B", have vassals B1-B5. Vassals B1 and B2 gave me Secret Fealty and after couple of years of preparations I declared war on empire B using Secret Fealty as wargoal. During a war, a vassal B3 gives me a Secret Fealty and after several months declares war on their overlord. After that my fleets in B1 space got missing in action and B1 and B2 joined thier overlord in war against B3, me and my vassals. In the first war B1 and B2 still in the list of my allies but now they are fighting against me. Also forum requers that I must attach file, sadly I was too embarassed to made screenshots and it 's ironman game so it was already overwritten. I could only attach the final savefile.

Steps to reproduce the issue.


Upload Attachment
File(s) attached

 

[fusei]

I have a related issue. An empire already in a war supporting their overlord, swore secret fealty to me and upon starting a fealty war is now in two wars, one fighting their overlord and one supporting their overlord. In this save it's the Zurite Entity.

Expected behavior:
When starting a fealty war remove all rebelling empires from any war they fight on the side of their overlord and don't let them join any new wars on the side of their overlord.
Alternately, since this could result in unwanted behavior if the rebel was the original target of the war their overlord is fighting, simply forbid joining fealty wars while in a war on the side of your overlord.