Snap refresh or new install stuck at 'Run configure hook of "core" snap if present'

Sat Feb 25 17:48:20 UTC 2017

On 24/02/17 14:08, Martin Winter wrote:
> Curious if anyone has seen the same. All my Ubuntu 16.04 Servers have this issue.
> (Approx 10 Servers which are part of my CI system)

Saw the same on a Debian Sid install that I was using to test my ldc2 snap 
package a couple of days ago.  However, it didn't persist -- a few minutes ago I 
was able to successfully install the core and ldc2 snaps.