Couronne Bordelaise with Lievito Madre (Didn't Go as Planned)

Continuing with the French tradition and looking for something more ... fancy than a simple boul, etc, I remembered yesterday that I could also bake a "Bordeaux crown". The last time I baked a Couronne Bordelaise (with fresh yeast) it was 3 years ago.
This time I went for a recipe with lievito madre. Actually it was more a freestyle compilation of 2 yeast base recipes (homebaking.at and marcelpaa.com):
10% low extraction rye flour