Same issue, Playing on Windows.

Picked "Boosted", tried to pick "Runaways" as second, now stuck and cannot move past one pack.

Same issue. Chose two packs, game kicks me back to homescreen after confirming. When I log back in it says I've only picked one pack. Sometimes I can pick the second again, but I get kicked back to the homescreen and then when I try again I don't even get the option to choose the second pack, the choices aren't there.
Playing on android.

Same for me! Locked. I picked Doom and then the second pack (I think Returned?). But then it just keeps saying choose deck, shows pack 1 Doom but no other packs visible, I can't continue.

Same issue for me. I choose two packs then it kicked me to home screen, still grabbed my 1000 coins, tried to restart and still can't play a game of jump in.

Same here, chose Doom, went to choose returned, it threw me out and now it's locked on Doom. Was my second try at that jumpstart event.

i have the same error. i chose equip then squadron then jumpstart froze.

I'm experiencing the same issue on the Windows standalone client.

What happened:

1.Entered MSH Jumpstart.
2.Before choosing my first pack, I opened the Deck screen to check my collection.
3.Returned to Jumpstart and selected the Animal theme.
4.Chose Rampaging as my second pack.
5.Immediately after that, I was sent back to the home screen.

When I entered MSH Jumpstart again, I became stuck on the screen shown in the attached screenshot. No deck is displayed, there are no clickable buttons, and I cannot make any selections.

Logging out and restarting the client do not fix the issue. My Jumpstart event is now completely blocked, so I cannot continue playing.

they have one more land than you on board...