SUMMARY The Urban Areas geodata layer, specified in Atlas and Plain themes, renders some cities above the ground layer, but some cities below it. STEPS TO REPRODUCE 1. Use the Plain theme. 2. Zoom in and look for large cities with obviously missing polygons. OBSERVED RESULT Some cities do not have visible polygons for their urban area. Some large coastal cities have their hidden polygon partially visible if it extends out beyond the land polygon. EXPECTED RESULT All cities have visible polygons for their urban area, above the land polygon. I have tested on Windows and Linux/KDE. SOFTWARE/OS VERSIONS Windows: 10.0.19041 Marble: 2.2.0 stable, 0.27.0 stable (installed from binary) Qt Version: 5.8.0 Linux/KDE Plasma: Gentoo Linux Marble: 2.2.20 (2.3 development), 21.04 (built from source) KDE Plasma Version: 5.22.5 KDE Frameworks Version: 5.85.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION