Adobe illustrator SVG issue - round corners

Hi!

I have a problem when exporting an illustration to SVG. I have "leaves" on trees and bushes. For some reason, when exporting, the leaves on the bushes are smoothed out, although the leaves on the trees remain the desired shape. I tried to expand the objects, but this did not solve the problem completely (photo 3)

What am I doing wrong?

Thanks in advance!