Lightbox:
Is your firmware up to date on the console? Anything at all you can think off?
I can't think of anything that would cause this as I don't have issues with any other app. Could it be something at your end?
ISP: Vodafone (I'm on ex-TCL network ADSL)
DNS: 203.109.191.1 (Primary)
203.118.191.1 (Alternative)
VPN: None
Router: Fritzbox 7390
PSN Account: NZ Account
PS4 software version: 2.03 (up to date)
Lightbox version: 1.00