Thank you for the report, and discussion.
As far as I know, the following is the intended behaviour;
"When you make a nation into your vassal or protectorate, they should lose all of their subjects.
When you make a nation your Personal Union junior partner, they should keep their vassals, marches and protectorates, while their Personal Unions transfer to you."
When 1.16 is released, that is how it should all work, again; an issue was fixed and is being tested on the matter.
As far as I know, the following is the intended behaviour;
"When you make a nation into your vassal or protectorate, they should lose all of their subjects.
When you make a nation your Personal Union junior partner, they should keep their vassals, marches and protectorates, while their Personal Unions transfer to you."
When 1.16 is released, that is how it should all work, again; an issue was fixed and is being tested on the matter.
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