It appears that certain shadows have an outline of light while using ShadowMap. It also creates a slight distortion while moving the camera (unable to capture that sadly). The higher the ShadowSoftness, the worse the effect is.
What is most likely happening is that the voxels are too big to clamp the shadow. I highly suggest you don’t use 0.08 softness, that usually causes more sharper voxels to appear and it doesn’t look that good. Hope this helped!
Not quite sure what you’re saying, but from what I can gather; they’re not asking for help fixing it, they’re reporting a bug.
I’ve also seen this bug occur before, not sure what causes it however. It seems to related to further away objects casting shadows onto shadows cast by nearer objects. I haven’t observed it happening the other way around.
Unfortunately, this is a known limitation of Variance Shadow Maps. You get light leaking when two objects that are very far away from each other cast overlapping shadows onto a 3rd object. We may do more shadow map R&D in the future, but we decided to go with VSM for now for its balance of quality and performance.