New Post: WPF Application crashing with Exception Code c0000005

I am converting a large number of PDFs to PNGs in a multi-threaded WPF application that gets document locations from a database and after conversion, I put the location of the converted document into another database. The program runs fine until after some time (around an hour maybe) it just crashes with an Exception Code c0000005.

The following is the details of the exception:

Problem signature:
  Problem Event Name:   BEX64
  Application Name: iGen.exe
  Application Version:  1.0.0.0
  Application Timestamp:    53c3af4f
  Fault Module Name:    StackHash_1dc2
  Fault Module Version: 0.0.0.0
  Fault Module Timestamp:   00000000
  Exception Offset: 0000000000000000
  Exception Code:   c0000005
  Exception Data:   0000000000000008
  OS Version:   6.1.7601.2.1.0.256.48
  Locale ID:    2057
  Additional Information 1: 1dc2
  Additional Information 2: 1dc22fb1de37d348f27e54dbb5278e7d
  Additional Information 3: eae3
  Additional Information 4: eae36a4b5ffb27c9d33117f4125a75c2

I am using the 6.8.9.401 Magick.NET x64 version and .NET 4. It doesn't seem to be on a particular file since I was able to convert all the remaining documents (after the crash) in another process.

I have never got this error in Visual Studio's debugging mode, only when I run the application without VS. In the VS, I sometimes get another error saying 'Attempted to read or write protected memory'

Could this be the Magick.NET library?