Failed to call hook 'OnCardSwipe' on plugin 'PuzzlePoints v1.4.6' (InvalidOperationException: Collection was modified; enumeration operation may not execute.)
  at System.Collections.Generic.List`1+Enumerator[T].MoveNextRare () [0x00013] in <ff4e3fe86250407285eaebda8f185c35>:0

  at System.Collections.Generic.List`1+Enumerator[T].MoveNext () [0x0004a] in <ff4e3fe86250407285eaebda8f185c35>:0

  at Oxide.Plugins.PuzzlePoints.OnCardSwipe (CardReader cardReader, Keycard card, BasePlayer player) [0x00076] in <4240776943ea4dd4a0d2fc921ef117ae>:0

  at Oxide.Plugins.PuzzlePoints.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x001a9] in <4240776943ea4dd4a0d2fc921ef117ae>:0

  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <795304323ac74a298b8ed190a1dfa739>:0

  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000de] in <beb2b64691c64e2b95b99491bd85442c>:0

  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <beb2b64691c64e2b95b99491bd85442c>:0

can confirm error since update

Any fix for this?

my apologies for the issues and delay, but lemme know if 1.6.1 fixes this.