On Wed, 19 Sep 2018 09:49:02 -0400, Paul wrote:

from a
directory traversal point of view, I don't understand
how the "answer" can come up different on each run.

I agree with Paul's observation that there is something "capricious" going
on, where computers aren't supposed to be doing different things when all
we're doing is selecting files to open in a series.

I don't know if Paul saw the FastStone test, but FastStone is clearly
running a "sort" of some sort.

But why should a sort be needed?
Why would Windows feed files in a capricious order to the editors?