Referenced animation in USD crashes UE on loading

Hi,
I found a Bug in which a Animation inside a USD file crashes Unreal every time you try to load the file. If this Animation is saved in a different USD file and only loaded trough a reference.
Seems to be a bug in UE because the same file can be loaded inside of Houdini with no Problems.
This also started to happen after the full release on 4.26.
this Problem never came up in the preview versions of UE 4.26.

Hello,

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Thanks

Marinna