The WoB https://wob.coppermind.net/events/484/#e15825 and https://wob.coppermind.net/events/508/#e15904 are the same,
Ianray7 (paraphrased)
Would a heavily Invested person or object resist a soulstamp?
Brandon Sanderson (paraphrased)
Yes, but soulstamps have a lot to do with volition. If the person was willing, they would be able to overcome that resistance to an extent.
How are these meant to be consolidated?