Here’s something to try:
- Check that “Generate Mesh
Distance Fields” is enabled in
Project Settings - Rendering. If
it’s not enabled, enable it. - Select the point light being used in
the scene, as seen in the pics, and
in the Details panel scroll down to
Distance Field Shadows. Enable it
if it’s not already got a check in
it. Don’t change the distance
setting unless it’s 0. If distance
is 0, change it to at least 1000. - Go up the Details panel to where
Source Radius and Source Length are
located. Change the Source Radius
value steadily from 0, and see what
happens with the line of light that
you don’t want, and the shadowing.
Try not to intersect the scene with
the Source Radius value (distance
from the edge of source radius to
the cart object).
Here’s a link to the Distance Field Soft Shadows page of the docs, which describes briefly how distance field shadows are used with Source Radius to control specular highlights (or the unwanted line of light in this case):