The Seven Deadly Sins: Origin

[spiritovod]

Backup for pc beta version is available in the game topic at rin forums. For password see rin forums FAQ.
All further posts related to this matter will be removed from this topic.

[spiritovod]

@RedBear: If you have full backup, make sure you're opening the root folder in umodel, because packages are stored in a few different subfolders. If you have only the launcher and used it to download the rest, check if packages were downloaded to the launcher folder - depending on windows settings, some games are storing them in user_profile\AppData\Local\project_name instead (for this game project name is "SevenDeadlySins").

Actually most games where base game works as a launcher to download the rest of resources at the first launch are using this approach.

[spiritovod]

@RedBear: Apparently the game is using IK rigs for animations retargeting related to playable characters (and maybe some others). Probably due to that default skeletons has more complex structure with what looks like duplicates and extra bones for additional processing. As result, some animations doesn't look properly - though skeleton-wise they're more or less correct, you can preview animation with skeleton only (press "S" to switch how skeleton is shown).  

As a workaround, you may use retargeting via more simplified skeletons linked to "_Screenshot" meshes. Though not all characters have such meshes or simplified skeletons. I've updated the first post with respective info.

It's also possible that animations are using reference pose from referenced animations, but they're not parsed in UE5 build like most other properties.