Using page up and page down in the message log functions correctly, but drops this error into the player.log

[Ashe]

Page Up:

Exception during UI.Framework::FireEvent: System.InvalidOperationException: Sequence contains no elements
  at System.Linq.Enumerable.First[TSource] (System.Collections.Generic.IEnumerable`1[T] source) [0x00010] in <9049f45778604ae18ec20868d537cc5c>:0 
  at XRL.UI.Framework.VisibleWindowScroller.SelectHighest () [0x0004a] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.VisibleWindowScroller.DoPageUp () [0x00080] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.Event+Helpers+<>c__DisplayClass2_0.<Axis>b__0 () [0x00030] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.Event+Helpers+<>c__DisplayClass0_0.<Handle>b__0 () [0x00016] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.NavigationContext.OnInput (XRL.UI.Framework.Event e) [0x000bf] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.NavigationController.FireEvent (XRL.UI.Framework.Event e) [0x0003c] in <eadfc533ab99474f95cef26639cac068>:0 
Exception during UI.Framework::FireEvent: System.InvalidOperationException: Sequence contains no elements
  at System.Linq.Enumerable.First[TSource] (System.Collections.Generic.IEnumerable`1[T] source) [0x00010] in <9049f45778604ae18ec20868d537cc5c>:0 
  at XRL.UI.Framework.VisibleWindowScroller.SelectHighest () [0x0004a] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.VisibleWindowScroller.DoPageUp () [0x00080] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.Event+Helpers+<>c__DisplayClass2_0.<Axis>b__0 () [0x00030] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.Event+Helpers+<>c__DisplayClass0_0.<Handle>b__0 () [0x00016] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.NavigationContext.OnInput (XRL.UI.Framework.Event e) [0x000bf] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.NavigationController.FireEvent (XRL.UI.Framework.Event e) [0x0003c] in <eadfc533ab99474f95cef26639cac068>:0 
Exception during UI.Framework::FireEvent: System.InvalidOperationException: Sequence contains no elements
  at System.Linq.Enumerable.First[TSource] (System.Collections.Generic.IEnumerable`1[T] source) [0x00010] in <9049f45778604ae18ec20868d537cc5c>:0 
  at XRL.UI.Framework.VisibleWindowScroller.SelectHighest () [0x0004a] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.VisibleWindowScroller.DoPageUp () [0x00080] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.Event+Helpers+<>c__DisplayClass2_0.<Axis>b__0 () [0x00030] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.Event+Helpers+<>c__DisplayClass0_0.<Handle>b__0 () [0x00016] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.NavigationContext.OnInput (XRL.UI.Framework.Event e) [0x000bf] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.NavigationController.FireEvent (XRL.UI.Framework.Event e) [0x0003c] in <eadfc533ab99474f95cef26639cac068>:0 

Page Down:

Exception during UI.Framework::FireEvent: System.InvalidOperationException: Sequence contains no elements
  at System.Linq.Enumerable.Last[TSource] (System.Collections.Generic.IEnumerable`1[T] source) [0x00010] in <9049f45778604ae18ec20868d537cc5c>:0 
  at XRL.UI.Framework.VisibleWindowScroller.SelectLowest () [0x0004a] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.VisibleWindowScroller.DoPageDown () [0x00080] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.Event+Helpers+<>c__DisplayClass2_0.<Axis>b__0 () [0x0006c] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.Event+Helpers+<>c__DisplayClass0_0.<Handle>b__0 () [0x00016] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.NavigationContext.OnInput (XRL.UI.Framework.Event e) [0x000bf] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.NavigationController.FireEvent (XRL.UI.Framework.Event e) [0x0003c] in <eadfc533ab99474f95cef26639cac068>:0 
Exception during UI.Framework::FireEvent: System.InvalidOperationException: Sequence contains no elements
  at System.Linq.Enumerable.Last[TSource] (System.Collections.Generic.IEnumerable`1[T] source) [0x00010] in <9049f45778604ae18ec20868d537cc5c>:0 
  at XRL.UI.Framework.VisibleWindowScroller.SelectLowest () [0x0004a] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.VisibleWindowScroller.DoPageDown () [0x00080] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.Event+Helpers+<>c__DisplayClass2_0.<Axis>b__0 () [0x0006c] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.Event+Helpers+<>c__DisplayClass0_0.<Handle>b__0 () [0x00016] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.NavigationContext.OnInput (XRL.UI.Framework.Event e) [0x000bf] in <eadfc533ab99474f95cef26639cac068>:0 
  at XRL.UI.Framework.NavigationController.FireEvent (XRL.UI.Framework.Event e) [0x0003c] in <eadfc533ab99474f95cef26639cac068>:0 

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