Give to and drop possible bug on Level 15

[12]

I am having a problem on level 15 where i can give to the shredder but if i dont also drop it afterwards it does not release the cube. There is no drop command available so i cant release the cube.

On level 14 i have to both give to and drop for the data cube to be shredded.

Am I doing this wrong or is there a bug where give to should also release the cube?

[commonnickname]

Could you please copy the code here?

[12]

2
if (top == a data cube){
pickup top
}else{
step top
}

1
if (bottom == a shredder){
giveto bottom
stop top
}else{
stop bottom
jump 1
}
jump 2

[Futae Yamagawa]

When I try that code ...
(for copy/paste benefit)

-- 7 Billion Humans (2214M) --
-- 14: Intro to Shredding --

a:
if n == datacube:
	pickup n
else:
	step n
endif
b:
if s == shredder:
	giveto s
	step n
else:
	step s
	jump b
endif
jump a

what I get is the workers don't touch the cubes, they just shred themselves. Is your code different from what I have?

If I replace the cube detect/pickup directions with 'south', it works, but everyone throws themselves in after shredding the cubes...