I recently built myself a Map server using this guide:
This has worked really well to an extent.
I have however noticed peculiarities at certain zoom levels.
Is this perhaps a caching or stylesheet issue?
I'm using the carto stylesheet as suggested in the tutorial. Also if it were caching I'd expect to just see blank tiles rather than outlines. Curiously if I'm zoomed in further and the tiles haven't cached they show as blank before rendering normally.