I got the same thing. on top of that later I got another active item and I when I tried to replace the item in my second slot, the bonus item from before went into the second slot instead. the curse that I was trying to take went into the fifth slot and became a dead item
I actually found a solution to that problem! when they updated the map, they made a new version of it and renamed it to dl_streets instead of streets_test. so just switch the map to dl_streets instead and you can test as much as you want
when I switch to the older streets_test map, the entire map turns pitch black except for some outlines. then, when if I go back to a regular map there are a bunch of strange colors on the geometry, video shows both.