Terrain flickering due to real-time shadows?

Just change the Clipping Planes "NEAR" and that will fix the issue about 99% of the time. Sometimes people will make the near place the minimum and that causes this issue. Try setting a value like .5

Also, there no need to mess with the shadow distance or bias in the light setting.

Hopefully this helps.

You can change the quality settings of shadows in : Edit > Project Settings > Quality try to change shadow cascades to four, shadow resolution to High and decrease the Shadow distance.

Hope that helps.

I've been able to reduce the problem by fiddling with the shadow "bias" setting on the direction light object. Increasing the bias has reduced the flicker problem but it also seems to introduce issues where the beginning of the shadow is offset from where it's supposed to start.

I started seeing this square shadow patch out of nowhere... is my lighting corrupted?