This is a few weeks old so old news to the Av nerds. But in the comments here there is an insider explanation of exactly what happened in the factory. And ho-boy, is it a gong show. Do not read if flying makes you nervous.
https://leehamnews.com/2024/01/15/un...comment-509962
part 2
https://leehamnews.com/2024/01/15/un...comment-509963
The "we fixed the rivets by painting over them" shows just how little they care about safety.