Bug: moving a track to the last/lowest position places is elsewhere

I noticed this bug for a couple of versions in CUBASE and in NUENDO now and need confirmation:

when I drag a track to my lowest position, it suddenly disappears. It will be placed in a sub-sub-folder of my template and I do not know why.

f.e. mouse-dragging the track “War_UI_Drum…” to the bottom in the empty space…

…will be placed here:

What the heck is going on here?

As a workaround I have to drag a track to one position before the last and move the last one up.