Knowledge Graph for brand term has stopped appearing

[bfrl]

Hi everyone

Our brand has an active G+ page (updated daily).
Our G+ is also linked to our site, verified, and we were lucky enough to get a vanity URL of our choice after our Google overlords confirmed it for us.

When searching a specific brand term within Google UK, Knowledge Graph appeared with a link to our G+ page, logo and links to our last two G+ posts.
Much like if you search 'seomoz'

This has now mysteriously vanished.
It could be a coincidence but it vanished roughly around the same time as we got our vanity G+ URL.

I asked about on Google product forums but to no avail.

Anyone else experienced this? Or even know how to get Knowledge Graph back to how it was?

Thanks!

[IOSC]

No I don't have any experience with this, but I noticed SEOMoz also has a vanity URL  -- I tested a few other big companies with local presence to see if any there was any correlation, all had the vanity URL.  How do you get the G+ vanity URL?  I'll do it and see if I experience anything similar