I noticed a strange behavior with 3.33beta3
related to "Maximum mirroring depth (abbr. MMD)"
and "Maximum external depth (abbr. MED)".

Here is an example.

I tried to get the website <http://cds21solutions.org/osj/j/>.
With (MMD, MED)=(3,0) I got 54 files.
With (MMD, MED)=(3,1) I got only 4 files.
With (MMD, MED)=(3,2) I got 54 files again.
With (MMD, MED)=(3,3) I got 54 files too.

What happens when I run HTTrack with MED=1.
Can anyone tell me the exact definition of MMD and MED ?
The phenomenon occurs not only on the website above.
I experienced the same trouble sometimes.