remmina freezes after a couple tunneled connections

After about 5 to 10 VNC connections over SSH tunnels, remmina seems to freeze and does not respond to closing the application or anything. No way to quit without kill/xkill.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: remmina 1.0.0-4ubuntu3
ProcVersionSignature: Ubuntu 3.13.0-19.40-generic 3.13.6
Uname: Linux 3.13.0-19-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Mar 29 16:21:27 2014
ExecutablePath: /usr/bin/remmina
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: remmina
UpgradeStatus: No upgrade log present (probably fresh install)