Stuck on Welcome to Smoothie... Please wait...

Just updated firmware to the Edge build: edge-16224cc and when I start up the printer, I see the counting LEDs, then the screen comes up with:

Welcome to Smoothie
edge-16224cc
Jun 1 2016 16:07:49
Please wait…

At this point, the LEDs are as follows:
[X] 4
[X] 3
[ ] 2
[ ] 1
[ ] Play

Not sure what to do to debug this. Nothing has changed int he hardware and I even re-created the config file.

Hardware is an Azteeg X5 Mini V2. Usinng the Delta config file from Github Edge branch.

Imported from wikidot

Can you try formatting your SD card ?

I grabbed a new card and copied over the firmware and config and it works. Thanks.