I use offline maps from openandromaps, download from page
https://www.openandromaps.org/en/downloads/europe
but see my screenshot, map has green lines on all map.
This not happened if us eg map LoMaps
There are some settings in option to avoid this graphics problem ?
Thank and good sunday
Hispa
This is not a mistake. It shows you a nature reserve. If you don't want it then you can disable it in the theme. Borders + special areas.