How can assets have different sizes on different machines?

Hello I am having a strange problem using unity collaborate.
I am using it for sharing a project between 2 computers ( I am the only one who is working on this project, both computers are mine).
The problem is that each time I upload the project from the machine A and download it back on the machine B
my assets turn out to have different sizes even if their scale and pixel per unit are set correctly.


You can see better what I mean by looking at these images. As you can see the triangle sprite is smaller that its collider, but in the same scene on the other machine the sprite has the same size of the collider.
What am I doing wrong?

Thank you for the help.

 

yes sorry

here It is:

in the first image you can see that the collider match the sprite(triangle) boundaries (computer A)
I do a commit form the computer A and then update the project on the computer B:


And as you can see in the second image the sprite is smaller and it does not match the collider.

I have tried to delete the project on the pc B and download it back as a new one but this hasn't fix the problem.

If I swap the PCs (I commit from B and update the project on A) the sprite (assuming on B it was of the right size) becomes bigger. This is driving me crazy because I have to spend time fixing it each time I change pc.

Useful notes:
Pixel per unit and scale do not change.
This triangle is not a .png image but is a vector image,could this cause any problem?
This problem happens with every sprite in the scene

 

no problem, I will do it as soon as I return home.
from which PC should I submit the bug report? should I submit 2 of them? (one for each PC)