Cast shadows not looking good

[simx34]

Hey all, I'm trying to get cast shadows to work, but whenever I set them up I get artefacts. Not sure if I'm missing something obvious, any suggestions?

[FlailingFog]

This is a frustrating issue that I could not solve in blender 4.2, which is why I disable the shadows during kkbp import. I have a feeling it's something to do with the eevee next renderer because the shadows were fine in previous blender versions. I also recall using the sun light source with the default angle value makes the issue worse, so if you're using a sun you can increase the angle to mitigate the artifacts to some extent