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I used to be able to hold the Shift key down, select the topmost torrent in transfers, then select the bottommost torrent and all the torrents in between would stay selected.

I can do this now, but I have to hold the mouse button down for a few seconds in order for the selection to stick. If I let go sooner all sorts of strange selections happen and the behavior changes as I continue to play around with various selections - selecting additional torrents with the shift key down or deselecting torrents with the Shift key down.

Is this intentional?

Video Screenshot-All clicks are with Shift key depressed

It seems that using ⌘ + ⇧ (Command and Shift keys) works on macOS to select multiple lines.

Is there documentation anywhere or is it trial and error?