Animations wont save (assets failed to save correctly)

When i try to save each animations it says:
The following assets failed to save correctly:
/Game/assets/character/animation/7_5GRigAni_Anim_GR_deform_*Asword3swing

Please help, other projects with the same animations now don’t save them even though they used to. I even tried a different version of unreal and different fbx (with animations) and same problem.