Some more information about this can be found here:
https://blogs.msdn.microsoft.com/shawnhar/2010/11/22/winforms-and-the-big-red-x-of-doom/

Some customers fix this by wrapping the function grabbing the image in invoke delegate:
https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/delegates/how-to-declare-instantiate-and-use-a-delegate