I use a Logitech g510 keyboard on my iMac, with the appropriate drivers installed. I wanted to look up something in a browser and when I used Windows-Tab that quit the game while in fullscreen.
It works find if I am in Windowed mode but not fullscreen. Windowed mode cuts off the bottom of the screen, and there is no option for full-screen windowed.
Are you sure that the client is not being minimized, rather than closed? While in full-screen, pressing Command+Tab (Windows+Tab with a PC keyboard) should minimize the game, then holding Command and pressing Tab several times should cycle through the open applications, allowing you to bring Guild Wars 2 back up.
I am pretty sure but unfortunately I can’t double check as it won’t load after showing a black screen and then closing the program now.
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