Ulrik

This is in version 3.8

Some more info on this from the event logs: ``` Exception information: Exception type: ArgumentOutOfRangeException Exception message: 'ddlRootNode' has a SelectedValue which is invalid because it does not exist in...

It seems a workaround for this is to override the getoutputcacheprovidername method. ```c# public override string GetOutputCacheProviderName(HttpContext context) { if (context.Request.Url.AbsolutePath.Equals("/umbraco/dependencyhandler.axd", StringComparison.InvariantCultureIgnoreCase)) { return "AspNetInternalProvider"; } return base.GetOutputCacheProviderName(context); } ```...