In Scene view, soft mask isn't displayed outside of the Camera frustrum, using URP

[LaCreArthur]

Everything is on the title, while in Scene view, soft masks doesn't work outside of the Camera frustrum, using URP.
I lost an hour trying to figure out why it was not working on my prefab but it was on the demo scene. Since the prefab doesn't have a camera, the soft masks are not working on the prefab context.
Why is that ? Is it fixable ?
Reporting for the ref, other might save an hour...

[mob-sakai]

Sorry for my late reply.
Could you please attach a minimal project (included Assets, Packages and ProjectSettings directories) that reproduces the issue?