From what I could gather from browsing through the editor, you have to wrap items that you want to respawn in object of type Rynn Powerup as that object gives you the option to respawn them at regular intervals. If you put them on a map regularly, they're there just until someone picks them up and then gone forever.
One unique ability of that object is to make objects spin with tweakable rotation speed. Because of that, anything wrapped in Rynn Powerup is automatically turned upside down, so I think you'd have to manually adjust angle of each object you place on the map to counter the automatic angle adjustment. By default, say you have the sword, when you place it on the map and don't touch any parameters, it lies on the ground. Rynn Powerup assumes the default state of things and turns it around and starts spinning it to make it obvious. Apparently some map makers noticed and disabled spinning, but didn't pay attention to how object is placed. In editor 3D view, the effects of Rynn Powerup object aren't visible.
"When a human being takes his life in depression, this is a natural death of spiritual causes. The modern barbarity of 'saving' the suicidal is based on a hair-raising misapprehension of the nature of existence." - Peter Wessel Zapffe