Animation collapses when importing to Unreal Engine 5

[brs-sebascova]

Greetings @ser.J!

A similar scenario was encountered in another thread, and the solution was to implement compatible skeletons in order to compensate the different sizes, as seen here:

Using same animations on multiple size skeletons?

With UE5, there is a new option called compatible skeletons, which allows animation assets to be used on all specified skeletons without any retargeting. This will only use the joint names to apply the transforms. I’m not sure it will be perfect, but it is worth a try. You can try it by opening the skeleton for which you have the animation assets, then go to Window->Asset Details, and under compatible skeletons add the other skeletons. After that you should be able to play any animation, or use…

Additionally, it would be a good approach to review related UE documentation about retargeting, to make sure all steps were covered in your process:

Animation Retargeting in Unreal Engine | Unreal Engine 5.5 Documentation |...

Using Retargeted Animations in Unreal Engine | Unreal Engine 5.5 Documentation...