HTTP Error 502.3 - Bad Gateway- The specified CGI application encountered an error and the server terminated the process after upgrading to RC1

I am getting this error only on PUT after upgrading dnx to 1.0.0 rc1 update. In eventvwr, I can see the below logged as Application Error:

Faulting application name: dnx.exe, version: 1.0.0.11123, time stamp: 0x5653996f Faulting module name: MSVCR80.dll, version: 8.0.50727.9193, time stamp: 0x56048aec Exception code: 0xc000000d Fault offset: 0x000000000001da44 Faulting process id: 0x1958 Faulting application start time: 0x01d173a169bd9f64 Faulting application path: ..\approot\runtimes\dnx-clr-win-x64.1.0.0-rc1-update1\bin\dnx.exe Faulting module path: C:\WINDOWS\WinSxS\amd64_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9193_none_88e4514b2faac6c7\MSVCR80.dll Report Id: 97c4f341-6aee-4165-a317-ebd49827598b Faulting package full name: Faulting package-relative application ID:

I can see HttpPlatformHandler installed and rc1 update as well. The appPool is running with my credentials. DNX is also running. I have seen the stdoutLogFile where the below is logged.

"Hosting environment: Production Now listening on: http://localhost:5000 Now listening on: http://localhost:26959 Application started. Press Ctrl+C to shut down."

Had anyone faced this issue earlier?