In my custom subscreen that is showing the wrong (non magic) passive screen I reported earlier, the map also doesn't show when picked up.
This one in loaded into the dmap (cave type) as level 10.
The other dmaps that I loaded no subscreen into, or before and after maps, the map shows when picked up, but these too also show the no magic passive subscreen.
Even though it shows no magic, link still has and can use magic.
[SUBSCR] map not showing (small map)
It's been fixed, works now in 536