Happens on PC as well. Cards can't be moved from sideboard to maindeck during bo3 sideboarding. Still happens even after Marvel set updates.

Przypomina mi to sytuację z zeszłego roku, tuż po premierze dodatku Bloomburrow, kiedy to bug ze sideboardem był tak poważny, że Wizards musiał całkowicie wyłączyć kolejki BO3 w trybach Draft i Sealed . Wtedy również problem dotyczył niemożności dokonania zmian pomiędzy meczami. Miejmy nadzieję, że tym razem nie będzie aż tak drastycznie, ale biorąc pod uwagę skalę zgłoszeń i fakt, że problem pojawił się po aktualizacji, liczę na szybką reakcję ze strony deweloperów. W międzyczasie, jeśli szukacie chwili wytchnienia od tej frustracji, polecam sprawdzić ofertę na https://spinmama.pl Niezależnie od tego, czy problem zostanie szybko rozwiązany, czy też będziemy musieli uzbroić się w cierpliwość, miło jest mieć alternatywę na oderwanie myśli. Sam czasem tam zaglądam, żeby zresetować głowę po takich bugach.

Similar issue, but on PC. Could only remove cards, and not add them. I tried closing the game and steam was stuck on the gray "Stopping" button. Happened in a ranked game and caused rank loss even though I was unable to sideboard and was then unable to reopen game. Hope there's some compensation at the end of this, Hasbro is straight up squeezing money from people with the rate they release these sets and yet they can't prevent such a gamebreaking bug? Sad.

Change your deck view

The same, windows pc

Came back from a break during turtles. Android same issue. Thinking about leaving again.

I also cant add or remove cards on Android sideboarding in bo3. I am so sick of this game just not working

I’m using an IPad. Haven’t been able to remove cards in best of 3 Standard matches for weeks now, whilst sideboarding.

I’ve also just experienced this bug. Would love to play Bo3 on my phone but this is unacceptable if this big har been around for so long

How long will you allow this bug to continue? This is ridiculous.

Same on iOS.

Still an issue after the latest update:
2026.59.30.4645.1279316

Not resolved by repairing game files.

Breaks bo3.

I think these are all reports of the same issue:

https://feedback.wizards.com/forums/918667-mtg-arena-bugs-product-suggestions/suggestions/51316156-sideboard

https://feedback.wizards.com/forums/918667-mtg-arena-bugs-product-suggestions/suggestions/51317368-sideboard

https://feedback.wizards.com/forums/918667-mtg-arena-bugs-product-suggestions/suggestions/51236575-can-t-sideboard-during-constructed-matches

https://feedback.wizards.com/forums/918667-mtg-arena-bugs-product-suggestions/suggestions/51314026-unable-to-sideboard

https://feedback.wizards.com/forums/918667-mtg-arena-bugs-product-suggestions/suggestions/51319051-unable-to-sideboard

In addition the "Capture Log" button doesn't seem to do anything, in case you're seeing nobody on iOS submitting a log to help with troubleshooting.

Cannot side board in best of 3 games.

Cannot side board in best of 3 games.

Voltei a jogar hoje, a nova temporada já começou e o problema ainda persiste ainda sem qualquer resposta ou previsão de uma solução. Como isso é possível? Um problema que praticamente inviabiliza o principal formato e ninguém se mexe para resolver?

I found the work around to switch via to vertical mode. Then you are able to move cards from the deck to the sideboard. But it is very frustrating to switch views and you can't see the cards only the cards game that way. Please fix asap!

Not being able to sideboard in best of 3 even casually is extremely frustrating. I dont want to waste gems trying to play anything and I cant sideboard. I cant rank up because of this and its almost time for ranks to reset. Wizards has to do something or compensate us

Same issue with iOS too

Same. Been like this for over a week.

Today, same issue with android.

Esse problema persiste há mais de uma semana sem qualquer resolução ou comunicado para a comunidade e isso é inadmissível. Acredito que a maioria jogue Bo3 e não ter um acompanhamento desse caso por parte do suporte é terrível. Jogo isso desde o beta fechado e nunca vi nada parecido