In the main screen new stories are available, but when I go to read them it says " catching up reading actions " then " fetching fresh stories " finally it displays " no stories to read "
This happened recently and keep going.

app version: 4.2.1
android version: 5.0.1
device: LGE Nexus 5 (hammerhead)
memory: normal
speed: 18 in 28 and 98
premium: no
prefetch: no