Personal Union member not helping in War

[Doctor Gualtieri]

Hey I've had this problem in two different runs so far.

I have a personal union member who is loyal, but won't move his troops to help during a war. I've cycled through the focuses for subjects (aggresive, siege, support, etc.) and at most the troops move one province in their territory before going back to afk'ing. They have land access to enemy territory and transport ships but still no go

Is this a known bug or am I missing something?

Extra information:

The partner is France, who I forced a personal union on though they are loyal according to the subject and diplomacy screen. They also have colonial territory, but his troops sit there afk too.

Just some visual proof I guess [i.imgur.com]

[Sparhawk1]

Ive had this happen a few times mysefl. What helps with me is i usually change their focus in the war. to siege or something or set them a province to siege. hope it helps.

[Lud]

the AI is probably stupid and dont know how to use transport ships. if you can, ask military access and see if they move to you. or tell them to stick around your armies

[Shai-Hulud]

Try no focus. Also try reloading the save.

I have noticed some lazy A.I. behavior lately, not usually with subjects though.

[Doctor Gualtieri]

Originally posted by Sparhawk1:

Ive had this happen a few times mysefl. What helps with me is i usually change their focus in the war. to siege or something or set them a province to siege. hope it helps.

Yeah I tried that. No luck lately though.

Originally posted by creep flyer:

the AI is probably stupid and dont know how to use transport ships. if you can, ask military access and see if they move to you. or tell them to stick around your armies

Well they're subjects so I think the military access is automatic. I'll try and weasel my way into getting them to help.

Originally posted by HUMAN INFANTICIDE:

Try no focus. Also try reloading the save.

I have noticed some lazy A.I. behavior lately, not usually with subjects though.

Yeah I tried all the behaviors. Maybe I need to stick to one for some measurement of game time to get them to actually move.

[Fear_Naught]

For some time now france ai has been a bit buggy. Thats what i've seen in past discussion. Even if France is not in a personal union with a player ie. u or me, the troops just sit around or at most, the ai sends 2/3 of his troops to garrison the new world against 5k native pop at most... lol. While France itself gets carved up lil by lil, by austria or spain or even england.
Basically its an annoying bug (hope terminology is correct) Yh just got to deal with it or get lucky ;/

[Admod, the Equivocal]

The AI finally plays like a human and people complain something is wrong with Ai. lel.

[Zorlond]

It's the AI. Of course it isn't going to help the player. That would be antithetical to making the player ragequit from being tired of all the ♥♥♥♥♥♥♥♥.

[zFUBARz]

Yeah, I've seen that for at least 6 months now, In a recent spain game I saw them just sit with double the provincial force limit taking attrition on a fort well behind their front lines, while the enemy just wrecked paris and their alpine forts.