I can place other stuff but when i try to place weapons from the content drawer it does nothing. I looked up what people did and its just drag and drop like i’ve been doing but for what ever reason it doesn’t seem to do anything.
You may be bugging out there,
What you are doing, should bring up the shotgun model sitting on an item spawner when you drag it into the viewport. Not keep the Shotgun icon.
Looks like a glitch
Try adding from the Content Browser instead of the Content Drawer
or maybe restart UEFN

