Normally, when equipping an item from your inventory while map view is open, the item shows as the item itself at the mouse cursor - same as when holding it over an inventory. If the item is placeable (as an entity) and the player hovers over the world (not a GUI), the item icon vanishes, and only the entity model and item count are shown. The transition from world to GUI happens normally for stuff like storage (moving a belt over a chest GUI hides the entity and shows the item icon at the cursor).
When equipping a placeable entity and hovering it over the world (player view or zoomed-in map), and then switching to map view (or zooming out), the item icon remains hidden. This persists even after removing the item from the cursor and selecting another one, and while in the beginning a placeable entity has to be selected, this can persist onto any item, even a non-placeable one (e.g. iron plate). I assume that the icon visibility simply doesn't get updated while in map view.
The bug occurs when:
- The player holds a placeable item over the world (not GUI) while entering map view
- /\ while zooming out from world view (zoomed-in map view) to regular map view
- The map view is exited
- The map view is zoomed in enough to see the actual world (this works even on areas not under radar coverage)
