After the disaster in Paris, Ladybug explains her own inaction by the "fact" that she cannot use Lucky Charm to correct the consequences of the disaster if the villain who caused her has already disappeared.
This explanation is directly opposite of what she ALREADY DID in Weredad (2019), when she used Lucky Charm to correct the consequences AFTER the akuma was caught and the villain disappeared.
This could not be due to Ladybug's powers improving in season 4, since the aforementioned episode is of season 3.
This explanation is directly opposite of what she ALREADY DID in Weredad (2019), when she used Lucky Charm to correct the consequences AFTER the akuma was caught and the villain disappeared.
This could not be due to Ladybug's powers improving in season 4, since the aforementioned episode is of season 3.
In Feast (2019), Master Fu says that a sentimonster he accidentally created ate all but one Miracle Box. He refers to that box as "the very last Miracle Box" implying that no others exist anywhere. Even if someone brought the Native American Miracle Box to the United States immediately after Ladybug fixed all the damage, it would not have been used in the American Revolution, and even if someone brought the Native American Miracle Box to the Order of the Guardians between the Revolution and Fu creating a sentimonster, it would have reappeared there (Fu is only 187 years old, so he must have created the sentimonster after the Revolution).
It is unlikely that Fu simply did not know about the Native American Miracle Box since he has seen the grimoire that Hawk Moth (who apparently knows about the Eagle Miraculous) had.
It is also unlikely that someone traveled back in time to plant the Eagle Miraculous since time travel is supposed to be a last resort and the Rabbit Miraculous is in the Chinese Miracle Box.