how to fix projector rays

Hello all,
I’m trying to use a projector to highlight units. Everything seems to work fine except for one thing: the projector generates some rays in 4 directions like this:

What might be the reason for this?
Thank you

Hard to tell by the image, but it looks like some texture artifact.

In any case, it might be, that the outer most pixel is bleeding over the edge and gets repeated. You can set the texture wrap mode to clamp. Maybe you even need to leave more space between the edge of the image and the actual pixels. If it’s a sprite, you should set the type to texture.