Same thing. Can’t play on any device.

Also would like to note that I did run into the "event deck bug" right before this happened, where it locked me out of playing the event.

Here's where it gets even weirder, my girlfriend can login to her account under the same conditions, but when I tried my account on her computer, it locked her computer out... What is going on???

Long time player, first time complainer... locked out after this recent update

Adding my ticket as another with the same issue here

Didn't realize the first report of this issue I voted on yesterday was originally from 2020. Good to see that this issue has happened regularly for 4 years.

Would be nice to see it acknowledged in some fashion (and reimbursement provided) but I guess it doesn't impact enough people each update. Good for fiscal responsibility though - not sure I'm comfortable throwing away any more money if every update is actually Russian Roulette.

Maybe next update will break it for everyone and they will have to address whatever sloppy code has been the real culprit for years.

Can't log in on PC or mobile. No previous issues for me. But since the update it keeps getting an error connecting to server.

same issue; also had the issue with the MKM story decks fwiw

Clearing out the registry did the trick. Took hours to get it all.

I'm in this boat. Think we may drown..

I also had the mkm event bug. I was only able to play one of the decks and just until the rewards were received. Event had said I could keep playing and swap decks as much as I like, but I didn't think anything of it until @TheKMitch pointed me down the reddithole. No solutions though:(

yep same happened to me, i think it has something to do with the new alchemy cards, because i updated the game and opened some packs, a little later i went to open the game once again and received this message, super annoying. it also happened to my mobile, is indeed linked to the accounts in special, i was very excited to play some challenges but they absolutely broke my vibe.

Same here, can't seem to bypass this error message.

This is ridiculous I have the same issue I just want to play. Same problem
On PC and mobile and customer support is not helping!

Same, don"t have any brawl decks.

Fukin **** .....this means I have to pay attention to reality now? Oh man....they better fix this fast.....this is dangerous.....to lots of people. I'm having this issue and cannot find any solution anywhere. Just rumors about brawl decks causing issues. Which makes sense since I had no problems until I made a few brawl decks and a new patch hit.

Same here, both pc / mobile. Can't be an ip / network / proxy issue. Let's hope it won't takes weeks to be fixed

Same. Tryed a fresh instal on computer and mobile. Tried work, home and mobile network.

Same

Same here. Tried login in with different devices and different networks without any success.

I wouldn’t take years off my life troubleshooting this issue because it is entirely up to Wizards to fix this issue themselves. This problem happens to specific accounts each major update with days, weeks, or months to take to fix. Do a little internet search for yourself, search for “error updating data” mtg arena… it’s is a reoccurring issue going back at least 4 years. Every time this happens Wizards quietly releases a back-end fix but they do not consider accessibility a priority for these accounts. Some effected accounts have been locked out for the entire time between releases. Basically all you can do is wait and accept that fact that others are happily playing the starter decks, drafting, busting open new packs on Arena…but you specifically can’t!

I encourage everyone experiencing this issue to do a quick search and look at the dates of the posts. It is a reoccurring issue they don’t know how to prevent! Bonus: don’t expect any compensation for missed dailies and events because WOTC doesn’t care in the slightest.