Hello Sebastian,
The problem is still there also in7.3.3
AssemblyVersion:7.3.3
PortalID:0
PortalName: xxxxxxxxxxxxxxxx
UserID:1
UserName:host
ActiveTabID:105
ActiveTabName:Pages
RawURL:/en-us/Admin/Pages
AbsoluteURL:/Default.aspx
AbsoluteURLReferrer:http://xxxxxxxxxxxxl/en-us/Host/Host-Settings/portalid/0
UserAgent:Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36
DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke
ExceptionGUID:e6536ec6-9c4f-4c7f-a115-59605e7cc6b3
InnerException:An item with the same key has already been added.
FileName:
FileLineNumber:0
FileColumnNumber:0
Method:System.Collections.Generic.Dictionary`2.Insert
StackTrace:
Message:
DotNetNuke.Services.Exceptions.PageLoadException: An item with the same key has already been added. ---> System.ArgumentException: An item with the same key has already been added.
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer)
at DotNetNuke.Web.UI.WebControls.DnnSkinComboBox. (EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
--- End of inner exception stack trace ---