There doesn't seem to be any specific trigger for the crash and the application event log isn't that enlightening:
Log Name: Application
Source: .NET Runtime
Date: 02/09/2017 19:23:33
Event ID: 1026
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: astropc1
Description:
Application: Sequence Generator.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ComponentModel.Win32Exceptio n
at System.Windows.Forms.NativeWindow.C reateHandle(System.Windows.Forms.Cr eateParams)
at System.Windows.Forms.Control.Create Handle()
at System.Windows.Forms.Control.get_Ha ndle()
at System.Windows.Forms.Control.Create GraphicsInternal()
at System.Windows.Forms.ThreadExceptio nDialog..ctor(System.Exception)
at System.Windows.Forms.Application+Th readContext.OnThreadException(Syste m.Exception)
at System.Windows.Forms.Control.WndPro cException(System.Exception)
at System.Windows.Forms.Control+Contro lNativeWindow.OnThreadException(Sys tem.Exception)
at System.Windows.Forms.NativeWindow.C allback(IntPtr, Int32, IntPtr, IntPtr)
Event Xml:
<Event xmlns="
http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name=".NET Runtime" />
<EventID Qualifiers="0">1026</EventID>
<Level>2</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2017-09-02T09:23:33.226403100Z" />
<EventRecordID>542</EventRecordID>
<Channel>Application</Channel>
<Computer>astropc1</Computer>
<Security />
</System>
<EventData>
<Data>Application: Sequence Generator.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ComponentModel.Win32Exceptio n
at System.Windows.Forms.NativeWindow.C reateHandle(System.Windows.Forms.Cr eateParams)
at System.Windows.Forms.Control.Create Handle()
at System.Windows.Forms.Control.get_Ha ndle()
at System.Windows.Forms.Control.Create GraphicsInternal()
at System.Windows.Forms.ThreadExceptio nDialog..ctor(System.Exception)
at System.Windows.Forms.Application+Th readContext.OnThreadException(Syste m.Exception)
at System.Windows.Forms.Control.WndPro cException(System.Exception)
at System.Windows.Forms.Control+Contro lNativeWindow.OnThreadException(Sys tem.Exception)
at System.Windows.Forms.NativeWindow.C allback(IntPtr, Int32, IntPtr, IntPtr)
</Data>
</EventData>
</Event>
This program has become absolutely unusable.