Conquest portal rendering error in hideout

Bug report reference number: 2,924,410,514

Steps to reproduce:
0) Have conquest portal effect set for the character, have a demonic curios 9, 10, 11, or 12 hideout effect near the map device.
1) Place a map in map device and activate, let the map open.
2) Place another map in the map device, activate the map but remove it before the new map opens.

Conquest portals hidden below ground are then visible through the demonic curios effect. Can move the curio around and the portals are still visible.

Opening another map or leaving and rejoining the hideout fixes the rendering as the portals are no longer underground.