I just went through an island with no building on it, this is the 1st 1 like that I've ever gotten, usually there's a building somewhere but not on this 1, I was thinking it would be at the edge of the last area I looked at like 1 I had earlier but it never happened.

It happens, I've been to plenty without any buildings. Not really a surprise lol

I only get buildings maybe 1 in 4 islands.