Cut button sometimes act like a copy button

[jeeg]

I added the but button in the toolbar of Xnview.
I select some photos, click the cut button, open a windows xp folder and click the windows paste botton.
What I get is 90% of the time a copy operation instead of a cut operation.
Expecially when moving files from a partition to another.

[xnview]

What I get is 90% of the time a copy operation instead of a cut operation.
Expecially when moving files from a partition to another.

Strange, is it 100% from one partition to another?

[jeeg]

It's not so easy to say because it doesn't happen always!
For example today I cannot make the bug appear. Today cut and paste work perfectly.

As soon as the bug happen again I will write down every single step with more precision.
So everyone can test if I'm the only one to have it.