Editor crash at open skeletal mesh

At click to open a skeletal mesh in the content browser, after 2 sec without open, all editor crash and close.
I tested with custom and default skeletal mesh, the editor crash, but a week ago at open the shooter demo skeletal mesh or default meshes this work fine.

*If i drag drop the model to the map or load in blueprint this don’t crash.
*Include all content using the skeletal mesh (animations, …)

If launch the editor with the parameter “-umg” crash all skeletal mesh editors

Yup - it’s a known issue with the old version of the UMG editor. It’s been fixed for 4.4.