I’ll double check with the team but basically, the troops are loosely based on the enemies you fight in the Kingdom quest line however, the team suggestion tool has the ability to change the team if it finds a better one - so it may be replacing those troops in certain Kingdoms as it feels there’s a better team combo.
Also thank you for clarifying in your 3rd post as the first post was a bit confusing and I was coming here to ask clarification questions but saw you had already cleared those questions up 