Missing items in some barrels and loot

Hi there,

I have setup barrels so there are only components in them.
My issue is that sometimes barrels only drop scrap and nothing else, and sometimes they drop 3 items.
And also some of the items, almost never drop
Can you shine some light on why that is?
may be me being a dumpa**
or it may be a bug
 

Metal Blade - 15%
Rope - 15%
Sewing Kit - 8%
Tarp - 8%
Empty Propane Tank - 8%
Gears - 1%
Semi Automatic Body - 1%
Sheet Metal - 1%
Electric Fuse - 1%
Road Signs - 1%
Metal Pipe - 1%
Metal Spring - 1%

Edited March 25 by BjarkeH

Whats you configuration for the item amount on the right look like?

If you always want barrels to drop at least 1 component, then I would recommend you to move all components into a separate category. Then you can configure a chance and min/max amount for all items in that category.