I got in but experienced a but of incosistent bugs like packs not opening and cards of the same type not being listed togheter some times (like instead of 8x charge bot youw ould se 1x charge bot, then 1x charge bot, the 1x charge and so on).
Maybe they are doing changes to the server?
EDIT: Now that I closed the client I am no longer able to log in agsin
I have also not been able to log in. I know that they said they would launch hex on ps4 next week, but i took a look at the announcement from sony and it said that the game is out now. perhaps this is the reason for the connection problems?