well disabling all cache options in cache settings did fix the blank page issue for me.  This was a clean install from github just a few hours ago.... for what it's worth. 

info: connection from ip = ::ffff:74.103.xxx.xxx, id = f975969e-47f2-404c-84a4-b

f585589251e

info: server ip = 74.103.xxx.xxx

info: Incoming original request action=init, ip=74.103.xxx.xxx, user_id=2, statu

s=1

info: Broadcast request from sId = f975969e-47f2-404c-84a4-bf585589251e, profile

_id = 2, body:

( { action: 'update_status', status: 1, user_id: 2 } )

info: Total sent to 0 profile(s)

info: server ip = 74.103.xxx.xxx

info: Incoming original request user_id=2, status=2, action=update_status, ip=74.103.xxx.xxx

info: Broadcast request from sId = f975969e-47f2-404c-84a4-bf585589251e, profile

_id = 2, body:

( { action: 'update_status', status: 2, user_id: 2 } )

info: Total sent to 0 profile(s)

thanks for the tip.