Convoy Gluster Failure

I’m new to Rancher. I’m running 1.1.0-dev5 on 3 VMware vSphere virtual machines. I was following the GlusterFS instructions, but I’m not having any luck. The glusterfs stack is running, but the convoy-gluster stack is stuck in a loop - it never completes the startup. Any suggestions?

Here’s a screenshot of the issue.