Hi Giuseppe,
It seems we didn’t see your reply. We apologize for the late answer.
I don’t suggest you to make a list to order your titles. BuddyPress Docs Numbered List should work fine without using the list block. Can you please remove this block and confirm me all is working fine?
Note that if you really want to add left spaces to the titles, I suggest you to use css or use a bullet list. However, it is not recommended.
Let me know if you need more explanations.
Best,