Exception when switching plugin tab

MIP
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1

The issue happens on Smart Client 2023 R3 connected to the Milestone Coporate Server 2023 R3 when switching our custom plugin tab to other tab and I don’t know what triggered it.

The client has latest patches on it.

<?xml version="1.0" encoding="utf-8"?><ExceptionLog><TimeStamp>2024-07-04T06:50:02.4742033Z</TimeStamp><Exception><ExceptionType>System.NullReferenceException</ExceptionType><Message>Object reference not set to an instance of an object.</Message><Source>VideoOS.UI.Common.WPF</Source><StackTrace>   at VideoOS.UI.Common.WPF.TimelineLegacy.Control.TimelineArea.Layers.Timelines.SlicedTimeline.SlicedTimeline.Close()
   at VideoOS.UI.Common.WPF.TimelineLegacy.Control.TimelineArea.Layers.Timelines.TimelinesLayer.Close()
   at VideoOS.UI.Common.WPF.TimelineLegacy.Control.TimelineArea.TimelineArea.Close()
   at VideoOS.UI.Common.WPF.TimelineLegacy.Control.TimelineControl.Close()
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent)
   at System.Windows.BroadcastEventHelper.BroadcastUnloadedEvent(Object root)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)</StackTrace></Exception><PluginInformation><Plugin Type="VideoOS.RemoteClient.Plugin.CentralizedSearch.CentralizedSearchContentType" File="VideoOS.RemoteClient.Plugin.CentralizedSearch.dll" LicensesOK="True" /><Plugin Type="VideoOS.RemoteClient.Plugin.Export.ExportContentType" File="VideoOS.RemoteClient.Plugin.Export.dll" LicensesOK="True" /><Plugin Type="VideoOS.RemoteClient.Plugin.GisMap.GisMapContentType" File="VideoOS.RemoteClient.Plugin.GisMap.dll" LicensesOK="True" /><Plugin Type="VideoOS.RemoteClient.Plugin.TextViewItem.TextContentType" File="VideoOS.RemoteClient.Plugin.TextViewItem.dll" LicensesOK="True" /><PlatformPlugin Type="VideoOS.Plugins.AdaptiveView.AdaptiveViewPluginDefinition" File="VideoOS.AdaptiveView.Plugin.dll" /><PlatformPlugin Type="VideoOS.EventServer.AlarmPlugin.SmartClient.AlarmPluginDefinition" File="VideoOS.EventServer.AlarmPlugin.SmartClient.dll" /><PlatformPlugin Type="VideoOS.IM.Plugin.IncidentManagerPluginDefinition" File="VideoOS.IM.Plugin.dll" /><PlatformPlugin Type="VideoOS.MetadataSearch.Plugin.MetadataSearchPluginDefinition" File="VideoOS.MetadataSearch.Plugin.dll" /><PlatformPlugin Type="VideoOS.Plugins.Blurring.SC.Core.BlurringPluginDefinition" File="VideoOS.Plugins.Blurring.SC.dll" /><PlatformPlugin Type="VideoOS.Plugins.MultiroomAudio.SC.Core.MultiroomAudioPluginDefinition" File="VideoOS.Plugins.MultiroomAudio.SC.dll" /><PlatformPlugin Type="VideoOS.Plugins.StickyNotes.SC.Core.StickyNotesPluginDefinition" File="VideoOS.Plugins.StickyNotes.SC.dll" /><PlatformPlugin Type="RestrictedMediaPlugin.RestrictedMediaPluginDefinition" File="VideoOS.RestrictedMedia.Plugin.SC.dll" /><PlatformPlugin Type="VideoOS.SearchAgents.SearchAgentPlugin.SearchAgentsPluginDefinition" File="VideoOS.SearchAgents.SearchAgentsPlugin.dll" /><PlatformPlugin Type="VideoOS.Transact.ClientPlugin.TransactClientPluginDefinition" File="VideoOS.Transact.ClientPlugin.dll" /><PlatformPlugin Type="Imagus.Client.ClientDefinition" File="Imagus.dll" /></PluginInformation></ExceptionLog>
2

Hi Tram,

Milestone Development will start an investigation.

3

Hi Tram again,

For further investigation, can you please provide your plugin? We would like to reproduce and see the issue. Thank you.

Best regards, Rie

4

Thanks Rio

I opened the support case and attached the plugin.

5

Thank you, I could see the case.

Milestone Development will start the further investigation. Let me get back to the case.