Phase 1&2 without a transition window ?

[SurfingNerd]

if too much time passes by, it is possible that the phase 2 of the transition is skipped.
In this case a candidate get's selected, has not the chance to write it's parts/acks and instantly gets marked as unavailable.
seems to happen once at first epoch, and if there is a problem to create a seal like:
DMDcoin/openethereum-3.x#27

[SurfingNerd]

observed again after a full network stuck with the biggest network we ever had. kicked out most of the validators at epoch 20.

[SurfingNerd]

... network offtime won't be tracked and fixed if it happens within Phase 2.
even phase 2 is usually VERY short (only ~ 2 Minutes with 25 Nodes) - this scenario is still plausable,
since the key generation requires a lot of load/storage.

[SurfingNerd]

no known problems since august :-)