Hi Joan, Here is a copy of the log in one instance of the software closing immediately:
103 - INFO - [Main] - Software - --------------------------------------------------
114 - INFO - [Main] - Software - 2021-12-07 15:12:24
117 - INFO - [Main] - Software - Kinovea 0.9.5, x64.
117 - INFO - [Main] - Software - Microsoft Windows NT 6.2.9200.0
117 - INFO - [Main] - Software - .NET Framework 4.0.30319.42000
117 - INFO - [Main] - Software - --------------------------------------------------
edit from Joan: I removed some lines from the log to make the forum more readable.
981 - DEBUG - [Main] - CameraTypeManager - Start discovering cameras
1008 - DEBUG - [Main] - CameraManagerDirectShow - DirectShow device enumeration: HP TrueVision HD (moniker:@device:pnp:\\?\usb#vid_05c8&pid_038f&mi_00#6&122ff71b&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global).
1008 - DEBUG - [Main] - CameraManagerDirectShow - DirectShow device enumeration: OBS-Camera (moniker:@device:sw:{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{27B05C2D-93DC-474A-A5DA-9BBA34CB2A9C}).
1008 - DEBUG - [Main] - CameraManagerDirectShow - DirectShow device enumeration: Reincubate Camo (moniker:@device:sw:{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{A8A87069-2FAE-4C55-9224-0F0AAE252D80}).
1037 - DEBUG - [HP TrueVision HD thumbnailer] - SnapshotRetriever - Starting HP TrueVision HD for thumbnail.
1055 - DEBUG - [OBS-Camera thumbnailer] - SnapshotRetriever - Starting OBS-Camera for thumbnail.
1071 - DEBUG - [Reincubate Camo thumbnailer] - SnapshotRetriever - Starting Reincubate Camo for thumbnail.
1086 - DEBUG - [Main] - ScreenManagerUserInterface - In ScreenManager OnLoad
1195 - DEBUG - [Main] - PreferencesManager - Exporting Preferences.xml
1337 - DEBUG - [Main] - FileBrowserUserInterface - Application is idle in FileBrowserUserInterface.
1403 - DEBUG - [Main] - CameraManagerDirectShow - Received thumbnail event for OBS-Camera. Cancelled: False.
1405 - DEBUG - [Main] - ThumbnailViewerCameras - UpdateThumbnailImage for OBS-Camera.
1455 - DEBUG - [7] - VideoReaderFFMpeg - pFormatCtx->streams[m_iVideoStream]->time_base.den: 60000, .num: 1
1457 - DEBUG - [7] - VideoReaderFFMpeg - Switching decoding mode. NotInitialized -> OnDemand
1485 - DEBUG - [7] - VideoReaderFFMpeg - Seeking to [37368131] completed. Final position:[37357320]
1495 - DEBUG - [7] - VideoReaderFFMpeg - Seeking to [74736262] completed. Final position:[74652578]
1504 - DEBUG - [7] - VideoReaderFFMpeg - Seeking to [112104393] completed. Final position:[112009898]
1513 - DEBUG - [7] - VideoReaderFFMpeg - Seeking to [149472524] completed. Final position:[149425276]
1514 - DEBUG - [7] - VideoReaderFFMpeg - Switching decoding mode. OnDemand -> NotInitialized
1748 - ERROR - [@device:sw:{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{A8A87069-2FAE-4C55-9224-0F0AAE252D80}] - SnapshotRetriever - Error received trying to get a thumbnail for Reincubate Camo
1748 - ERROR - [@device:sw:{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{A8A87069-2FAE-4C55-9224-0F0AAE252D80}] - SnapshotRetriever - Unable to cast object of type 'Camo.CamoFilter' to type 'AForge.Video.DirectShow.Internals.IBaseFilter'.
1760 - ERROR - [@device:sw:{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{A8A87069-2FAE-4C55-9224-0F0AAE252D80}] - Program - ----------------- Unhandled Crash -------------------------
1760 - ERROR - [@device:sw:{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{A8A87069-2FAE-4C55-9224-0F0AAE252D80}] - Program - Message: The object's type must be __ComObject or derived from __ComObject.
Parameter name: o
1760 - ERROR - [@device:sw:{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{A8A87069-2FAE-4C55-9224-0F0AAE252D80}] - Program - Source: mscorlib
1760 - ERROR - [@device:sw:{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{A8A87069-2FAE-4C55-9224-0F0AAE252D80}] - Program - Target site: Int32 ReleaseComObject(System.Object)
1760 - ERROR - [@device:sw:{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{A8A87069-2FAE-4C55-9224-0F0AAE252D80}] - Program - InnerException:
1760 - ERROR - [@device:sw:{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{A8A87069-2FAE-4C55-9224-0F0AAE252D80}] - Program - Stack: at System.Runtime.InteropServices.Marshal.ReleaseComObject(Object o)
at AForge.Video.DirectShow.VideoCaptureDevice.WorkerThread(Boolean runGraph)
at AForge.Video.DirectShow.VideoCaptureDevice.WorkerThread()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
2196 - DEBUG - [Main] - CameraManagerDirectShow - Received thumbnail event for HP TrueVision HD. Cancelled: False.
2196 - DEBUG - [Main] - ThumbnailViewerCameras - UpdateThumbnailImage for HP TrueVision HD.