Collectible Card Game Headquarters

Describe the Bug:
Don't know if this is an engine limitation, but while effects that happen during upkeep are skipped, the phase is not skipped. So you can cast instants or activate abilities before the draw step.

Which card did behave improperly ?
Eon Hub

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Manalink 2014/9/14: Conspiracy for the recoding of M15 minipatch 2,duel

What exactly should be the correct behavior/interaction ?
Phase should be skipped entirely, so you shouldn't be able to do anything during it.

Are any other cards possibly affected by this bug ?
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Unsearchable

This Only happens if you have a stop on upkeep (which I guess will make it stop no matter which card is on the battlefield)and gives you the chance to activate abilities or play instants on the beginning of upkeep only but not later.If you don't have a stop Eon Hub will correctly make whole upkeep phase pass without you having the opportunity to activate any abilities/play instants.
I don't know if this stop can be override,too.

I never would have thought to remove that stop. Nice catch.

Yup, Eon Hub is still an approximation.