The movie was in the middle of post-production and beginning test screenings that summer. While a timeline is not clear, from summer 2022 to the beginning of 2023, The Lost Kingdom underwent two rounds of reshoots and held several uninspiring test screenings.
After one round of test screenings, new Warners film bosses Michael De Luca and Pamela Abdy got involved, as they were running point on DC until Warner Bros. Discovery CEO David Zaslav could find a permanent DC boss to replace Hamada. Sources say that in the fall, Abdy took a strong creative stance and got involved in the editing of one cut. However, when that version tested, it scored lower than the previous version. That led to another round of reshoots.
Different visions of executives notwithstanding, it is unclear what the problems were, but one insider said the underlying issue of story clarity has been an ongoing concern.