Having no clue what the "first" button was, I clicked it to edit it to something useful. I've never used the hotkey/keyboard shortcuts page, for some reason I don't really like them in FO, prefer mouse-for-everything.
When I click it, there's the sound of a button being pressed, and then nothing. My game has now frozen, nothing is responding, the mapwnd is still refreshing in the background but I can't do anything at all.
Nothing of use in the logs
freeorion.log wrote: 2014-09-09 12:29:05,517 DEBUG Client : (HumanClientFSM) PlayingTurn.PlayerStatus
2014-09-09 12:36:32,690 DEBUG Client : HumanClientApp::HandleFocusChange()
2014-09-09 12:36:32,698 DEBUG Client : SidePanel::RefreshImpl time: 6
2014-09-09 12:36:32,709 DEBUG Client : SidePanel::RefreshImpl time: 10
2014-09-09 12:36:37,693 DEBUG Client : LimitFPSSetOptionFunction: bool: 1
2014-09-09 12:37:40,135 DEBUG Client : HumanClientApp::HandleFocusChange()
2014-09-09 12:37:41,765 DEBUG Client : HumanClientApp::HandleFocusChange()
2014-09-09 12:37:57,299 DEBUG Client : HumanClientApp::HandleFocusChange()
Haven't tried restarting or replicating yet, wanted to record first.freeoriond.log wrote: 2014-09-09 12:29:03,751 DEBUG Server : ... no orders from empire id: 1
2014-09-09 12:29:03,751 DEBUG Server : ... have orders from empire id: 2
2014-09-09 12:29:03,751 DEBUG Server : ... have orders from empire id: 3
2014-09-09 12:29:03,751 DEBUG Server : ... have orders from empire id: 4
2014-09-09 12:29:03,751 DEBUG Server : ... have orders from empire id: 5
2014-09-09 12:29:03,751 DEBUG Server : ... have orders from empire id: 6
2014-09-09 12:29:03,751 DEBUG Server : ... have orders from empire id: 7
2014-09-09 12:29:03,751 DEBUG Server : ... have orders from empire id: 8