Inside the midi editor:
If you start to drag a selection
beginning shortly after the beat,
immediately the "area of selection" snaps to the beginning of the beat,
as longs as the grid is turned on.
In other words: You can't select what you select.
I find this to be on of the most annoying and un-intuitive behaviors inside the midi editor:
You always have to disengage the grid first, just do make a free selection,
then turn it back on in order to move notes inside the grid.
(Unfortunately holding Shift before clicking does not change this behavior.)
Problem: The selection tool inside the midi editor works like a range selection tool
even though the result is just a selection of notes!
In first place it should be possible
to make a free selection
independently form the grid.
In second place - if you hold down shift -
the selection tool could work as a snapping range-tool
like its doing now by default.