When I right-click-drag on my MacBook Pro TB 2017, a transparent window opens up and the dragging motion ''draws'' where I dragged. However, the dragging function does not work. If I release the right click, the window disappears. Happens on both my trackpad and with a external USB mouse. How do I fix this, because I need to right-click drag for some applications?

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  • 1
    If you turn off bluetooth and disconnect all mice and pointing devices, does that affect things? – bmike Sep 14 '18 at 6:29
  • No, it tried and it doesnt work. – Teekho Sep 14 '18 at 19:39

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