Hello
On a 9.14.5 solution I am trying to upgrade Swift v1.12.0 to v1.15.0 via deployment tool and when I compare Content I get the following error:
2022-12-05 12:19:46.660: Exception of type 'System.Web.HttpUnhandledException' was thrown.. System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.AggregateException: One or more errors occurred. ---> 
System.Net.Http.HttpRequestException: Response status code does not indicate success: 500 (Internal Server Error).    at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode()    at Dynamicweb.Deployment.RemoteDeploymentProvider.<PostRequest>d__31`2.MoveNext()    --- 
End of inner exception stack trace ---    at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)    at Dynamicweb.Deployment.DeploymentProvider.CompareDataItems(DeploymentProvider destination, DataItemSelection selection)    
at Dynamicweb.Admin.DeploymentUIHelper.AddDataItemTypeWithComparisonData(Control box, DataGroup dataGroup, DataItemType dataItemType)    at Dynamicweb.Admin.DeploymentUIHelper.MakeGroupBox(DataGroup dataGroup, IEnumerable`1 children, Boolean includeData, Boolean compare)    
at Dynamicweb.Admin.DeploymentUIHelper.MakeHierarchy(DataGroup group, Boolean includeData, Boolean compare)    at Dynamicweb.Admin.Deployment.InitializeControls(Boolean compare)    at Dynamicweb.Admin.Deployment.Page_Load(Object sender, EventArgs e)    at System.Web.UI.Control.OnLoad(EventArgs e)    
at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) ---> (Inner Exception #0) System.Net.Http.HttpRequestException: Response status code does not indicate success: 500 (Internal Server Error).    
at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode()    at Dynamicweb.Deployment.RemoteDeploymentProvider.<PostRequest>d__31`2.MoveNext()<---     at System.Web.UI.Page.HandleError(Exception e)    at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)    
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)    at System.Web.UI.Page.ProcessRequest()    at System.Web.UI.Page.ProcessRequest(HttpContext context)    at ASP.admin_content_management_deployment_deployment_aspx.ProcessRequest(HttpContext context)    
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()    at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)    at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
2022-12-05 12:19:46.681: Request headers: [   "Cache-Control",   "Connection",   "Content-Length",   "Content-Type",   "Accept",   "Accept-Encoding",   "Accept-Language",   "Cookie",   "Host",   "Referer",   "User-Agent",   "Upgrade-Insecure-Requests",   "Origin" ]
2022-12-05 12:19:46.681: Request item keys: [   "AspSessionIDManagerInitializeRequestCalled",   "AspSession",   "Dynamicweb.Environment.Web",   "ExecutionTableMapper",   "alternateUrlKey",   "Dynamicweb.RewriteUrl",   "owin.Environment" ]
2022-12-05 12:19:46.681: Request form: [   "deploymentAction",   "dataGroupId",   "destinationId",   "dataItemType" ]
This is the only error which shows up in eventviewer log as well.
Hope you can help me resolve this.
Kind regards
Tobias