Anyone have small 3-4mm round cracks in their clearcoat? Is there any simple repair for these, or is repainting the only solution?

If this is what your talking about

(looks like millions of tiny lines in your paint when sun is glaring on it)

Then you wanna use a Glaze to fix it, Zaino makes the best that I know of.
It can also be fixed by buffing, but I would let prof. do that.

They are small circles, about 2-3mm diameter, where there appears to be a crack in the clearcoat. I have a couple of these on my hood in different locations. They're nearly invisible when the car is clean, but when the car gets dirty, they become more visible.