Landscape Lightmap Seams per Component?

Anyone knows why I get these seams on my landscape?
I can’t seem to get rid of them at all only by turning up my light high but then you still kinda see it…

I’m using lightmaps btw

I’ve been looking for this solution a couple of times already but noone seems to know the answer

I’ve kind of fixed it myself since its barely noticable now, however, the build time has increased drastically.

Basicly I went into World Settings and increased the Indirect Lighting Quality to 3-5 and decreased the Indirect Lighting Smoothness to 0.75 and this pretty much removed 95% of all the seams

You can try to resize your landscape, make it use less component counts, it will help a lot~