I have noticed a few times now that the main grid selection is kinda weird.

It happened once to me that I right clicked on an item in the grid to delete the item (via menu) but what happened was that sudenly all my items in the entire grid were deleted. This happened after I first single clicked the item to disable any selection other than the file I was targeting.

The same thing happened one time when i was trying to "reset" a file and this crazy JD selection scheme also reset other items (and so deleting already downloaded finished files!).

I would describe the issue in short as follows:

1 - single left clicking on an item does not (always?) clear selection of other items.
2 - when right clicking on an item without having anything selected beforehand it is possible to suddenly have more than one file selected.

edit:
furthermore I would lke to say that the coloring of the griditems regarding selecting is counter intuitive (except for the green color). Moreover, I dont understand why the grid sometimes shows grey and sometimes white without me having clicked anything.