The purpose of custom ist to have custom settings - What did you think? *wonders* - if it worked before - it was a bug indeed - the Default custom values are zeroed ...
AppleTV4/iPhone/iPod/iPad: HowTo find debug logs and everything else which the devs like so much: click here
HowTo setup NFS for Kodi: NFS(wiki)
HowTo configure avahi (zeroconf): Avahi_Zeroconf(wiki)
READ THE IOS FAQ!: iOS FAQ(wiki)