In Miraculous: Tales of Ladybug & Cat Noir, the events you're referencing involve intricate plot developments regarding the Miraculous and their wielders. In Season 5, Hawk Moth (Gabriel Agreste) does attempt to capture Ladybug's Miraculous and use the Butterfly Miraculous against her. Ladybug transforms into Lady Noir during this confrontation to defeat him.
After the fight, the battle often leads to tense situations where the Miraculouses can end up in precarious positions. If Ladybug drops the Butterfly Miraculous at the end of Season 5, it could have significant implications for the storyline and future episodes, as it may allow other characters to interact with or reclaim that Miraculous.
The series has a complex narrative involving many twists and character developments, so it's not unusual for scenes to leave viewers with questions about character actions and the state of the Miraculouses. For exact plot details and character developments, it's always helpful to refer to the episodes directly or any official summaries from the show's creators.