MTG Arena Bugs & Product Suggestions
This page is for reporting bugs and submitting product suggestions. If you are experiencing issues with your account, with an order, or otherwise need customer support, please click here.
How to report a bug
1. Give us the steps to reproduce the bug
2. Note which platform you’re using (PC, Steam, Mac, Android, or iOS)
3. Enter the actual results you’re experiencing
4. Enter the expected results of the feature
5. Add any relevant screenshots/videos
6. If you found a workaround, please add workaround steps.
Examples of bugs: Incorrect rules interactions, wrong event rewards, issues with client functions like creating decks
How to submit product suggestions
- Select “Product Suggestion” as the Category for your suggestion
- Enter your feedback
- Add any relevant screenshots/videos
Examples of product suggestions: Feedback on visual effects, recommendations for user interface improvements, new feature requests
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532 results found
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cannot change deck format bug
Cannot change format of deck in the deck builder.
1) imported deck
2) go to change format
3) drop down appears to be behind the stats and cannot select anything187 votes -
Cannot change deck type Format and cannot change Companion in Deck Builder
With the latest updates for the PC version of the app/client from this week (Sunday Jan 5, 2026 - Saturday Jan 10, 2026), I cannot change the deck Format on any deck in the deck builder. The drop down menu is hiding behind the deck stats on the left side of the screen. Also, I cannot change the Companion in the deck builder. All of the non-default Companion options are gone from the left side of the screen.
175 votes -
Companions Missing
All my companions are missing when I try to make a new deck.
151 votes -
Cannot choose a different Companion when editing a deck
When editing a deck, in the screen where I can choose Avatars, Companions, and Card Sleeves, when I click on the Companions button, only my existing Companion is listed. I cannot see any of my other collected Companions. My only option is to go back to the previous screen.
127 votes -
Brawl Deck being marked invalid due to containing mutiple copies of Nazgul
New issue as of july 8th 2025. Brawl deck is flagged as invalid, removing the extra 8 copies of Nazgul makes the deck register as working.
145 votes -
Companion list unavailable
After the last update (2026.54.40.5293.1221064), I'm suddenly unable to select a companion for my decks. The list of companions is blank (although I have like 12+ unlocked companions), only the preselected companion is visible. I'm playing on Android app.
Please fix this asap.61 votes -
companion bug
I cannot see my pets when I try to change a companion for a deck. I'm stuck with my past picks and the default companion for my new decks.
59 votes -
nazgul brawl
Client invalidate Brawl decks with more copies of the same card as the cards express (es. : Nazgul, Rat colony)
88 votes -
Got the wrong packs in Lorwyn Mastery
The Mastery Pass gave me 3 Edge of Eternities packs instead of Lorwyn packs. If you can credit me the Lorwyn packs, that would be awesome! I'm pretty stoked on this set :D
35 votes -
Deck builder won't let me save deck due to sideboard bug
Deck builder says I can't save a deck with more than 15 cards in sideboard even when the side deck has less than 15 cards. It forces me to go down to 7 cards in the sideboard to save. This is for a standard deck.
93 votes -
Unable to change Deck Format on the Deck building screen - Bug
8,1,2026
It is no longer possible to change the format from the deck building screen.
Please take action34 votes -
Hide Alchemy from Set Collection
Allow players to hide Alchemy sets within collection. I'm sure I'm not alone in not being interested in collecting those and I'd be much more interested fin completing the other sets if my collection looked neater...
72 votes -
Unable to play with adjusted Kona; deck will not validate.
Unable to play with adjusted Kona (from 4 to 5 mana); appears in deck and is not "grayed" out, but will not validate.
22 votes -
Mastery pass wrong packs awarded at level 4
Hi I completed level 4 of mastery pass, and instead of Lorwyn packs, I received Edge of Eternities packs.
26 votes -
Draft deck stuck on details
After drafting Avatar, I clicked on the deck details page to see what my average mana value is. From that screen, every time I try to exit back to deck building, it pops up the window to rename my deck. The only way to exit from deck construction is to go to another menu (ie home, decks, store, etc) and discard the changes that I made
32 votes -
'Select Companion' list is empty
Per the screenshot, there are no companions found in the Select Companion list.
This occurs regardless if building a new deck or editing an existing one.
I have attached a screenshot showing that I do indeed own various companions.
Windows user.30 votes -
Mastery pass lorwyn level 4 gave 3 packs of edge of eternity
Got the wrong packs in the mastery pass for lorwyn
26 votes -
Lorwyn Mastery pack containing wrong cards
Bought the Mastery pass for Lorwyn Eclipsed, received what looked like 3 Lorwyn Eclipsed packs (granted for level 4), but they contained cards from Edge of eternities instead???
23 votes -
Deck builder Format switching
Deck Builder Format switching. When using the deck builder, if you access the deck details, when clicking the drop down menu for changing the format for that deck, it appears behind the panel for the bar graph stats for the mana distribution. The menu cannot be seen or used.
28 votes -
Deck type selector doesn't work anymore
Deck type (format) selector became unusable starting from Jan, 6 update. How to reproduce:
- Go to "Decks"
- Select any existing deck and click on "Edit Deck" button
- Click on the mana curve symbols
- Click on the deck format at the left top corner (Standard/Historic and etc)
The menu with deck format is shown under other elements and you cannot click on any entry to change the deck format.
26 votes
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