Autocad 2013 crashing upon choosing a hatch boundary

[MBurgess]

Title explains it all, i try to hatch something and my drawing crashes. I have purged things i dont use, detached my xrefs and it still instantly crashes when i select a curved fin wall i have to hatch it.

This is the error message i get


Problem signature:
Problem Event Name: APPCRASH
Application Name: acad.exe
Application Version: 25.0.55.0
Application Timestamp: 4f309abd
Fault Module Name: KERNELBASE.dll
Fault Module Version: 6.1.7601.17651
Fault Module Timestamp: 4e21213c
Exception Code: c0000005
Exception Offset: 000000000000af17
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 4105
Additional Information 1: 9c2e
Additional Information 2: 9c2e59e6d55f688480d9eebfae0471b3
Additional Information 3: e31c
Additional Information 4: e31ca1992c5a483febd7a6cea129c2a7


Any help would be greatly appreciated, this project is due tomorrow at 8 AM, and I dont want to submit without hatches.

[ReMark]

Would it be possible for you to upload and attach a sample DWG file with just the curved fin wall in it? We do NOT need the entire drawing. What hatch pattern were you planning on using?