Is your log similar to this?
Application: BigBox.exe
CoreCLR Version: 6.0.2123.36311
.NET Version: 6.0.21
Description: The process was terminated due to an unhandled exception.
Exception Info: System.NullReferenceException: Object reference not set to an instance of an object.
at SharpDX.XAudio2.VoiceShadow.VoiceVtbl.OnVoiceProcessingPassStartImpl(IntPtr thisObject, Int32 bytes)
Or this?
Application: LaunchBox.exe
CoreCLR Version: 6.0.2123.36311
.NET Version: 6.0.21
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ComponentModel.Win32Exception (5): Access is denied.
at System.Diagnostics.ProcessManager.OpenProcess(Int32 processId, Int32 access, Boolean throwIfExited)
at System.Diagnostics.Process.GetProcessHandle(Int32 access, Boolean throwIfExited)
at System.Diagnostics.Process.WaitForExitCore(Int32 milliseconds)
at System.Diagnostics.Process.WaitForExit()
at Unbroken.LaunchBox.Windows.Desktop.Program.LogoutInvalidFilter(Object )
at Unbroken.LaunchBox.Windows.Desktop.Program.ListStatelessParser(Boolean itemneeded)
at AdapterResolver.CustomizeInvalidState(Boolean itemneeded, AdapterResolver )
at Unbroken.LaunchBox.Windows.Desktop.Program.Main(String[] args)
@C-Beats this still occurs on exiting Big Box, although it doesn't actually seem to crash.