Can't click on the world with toolgun

Whenever i try to spawn an advanced dupe on the world, weld to the world, spawn something on the world, or even use no collide world, nothing happens. I click but it doesn’t spawn anything. I can only use the toolgun on props. This makes various stools extremely inconvienient or completely worthless. It has been like this for as long as i can remember. is there some addon i have that’s doing this? and if so or if not what do i do to get things back to normal?

can anyone help?

Reinstall?

do you have any idea what caused it? is it something in my settings?

It’s an addon causing this, but I forget which one…

Think man think!

remove nocolide world. the one i had did the same thing.