RH crashes during print after today's Ubuntu updates to Mono

Ubuntu 14.04 pushed a software update this evening and now prints crash about 2 minutes into the print, with the following not terribly useful looking output:

"Rebuild object False

Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object
  at System.Threading.EventWaitHandle.Reset () [0x00000] in <filename unknown>:0
  at (wrapper remoting-invoke-with-check) System.Threading.EventWaitHandle:Reset ()
  at System.Threading.Timer+Scheduler.SchedulerThread () [0x00000] in <filename unknown>:0
  at System.Threading.Thread.StartInternal () [0x00000] in <filename unknown>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Threading.EventWaitHandle.Reset () [0x00000] in <filename unknown>:0
  at (wrapper remoting-invoke-with-check) System.Threading.EventWaitHandle:Reset ()
  at System.Threading.Timer+Scheduler.SchedulerThread () [0x00000] in <filename unknown>:0
  at System.Threading.Thread.StartInternal () [0x00000] in <filename unknown>:0"

Not sure which mono packages to pull the version information from, so I went with mono-runtime, but it appeared that basically all the Mono packages got updated.

dpkg -s mono-runtime
Package: mono-runtime
Status: install ok installed
Priority: optional
Section: cli-mono
Installed-Size: 93
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Architecture: amd64
Source: mono
Version: 3.2.8+dfsg-4ubuntu1.1

RH 1.0.6, slicing with Cura.