Dockable Playerlist
 

The dockable playerlist will only dock on your first monitor; even if Graal is on your second, it is impossible to get the playerlist anywhere on the other monitor. On Windows, of course (since Mac uses the scripted playerlist).

I know the external playerlist is intended to be phased out, but I thought I'd report this bug in case you decide to keep it.

It's especially annoying if you have 2 Graal windows open.