Hi,
I have been maintaining an old project since 2022 where we have to change or add new character animations. This project had migrated from UE4 to UE5 because of that we use the UE4 skeleton when exporting animations from iClone.
I had add new animations to that project today and noticed a twist in the neck. It appears that the neck twist bone has a different orientation if I export it from iClone, it looks fine in iClone but not in UE5. Last time I did work on this project was august of last year and those animations exported fine. But now even if I just open de .project file for those animations and export them to UE I see a neck twist when importing them. So sometime between then and now the bone got flipped during export.