I found the problem and it will be solved.
For those who are interested, the tournament was simply recorded in "Swiss tournament" mode. The format of Swiss tournaments is different because it consists of a team playing against the one that is close to it in the ranking. So for example, the first in the ranking faces the second. Unless he has already played against the 2nd this week, in which case he plays against the 3rd in the ranking and so on.
This kind of tournament is used on the native and on BannerLord. It's great for the first teams but for the rest it's still quite complicated to make a good ranking
Edit: This therefore explains why there are no planning as it evolves according to the different rankings.