Cast Wedding announcement in MTGO sealed and mtgo immediately crashed. It crashed 2 more times on reopening. The weird thing is it clearly crashed my opponents client as well, because they ended up timing out and gave me the win.

Spoke to some other players and it happened to another player with wedding announcement as well. Note I successfully used the card before so I'm not sure exactly what caused it, but it was played turn 3 this time.

I was playing AFR sealed league, R2. Score was 1-1 and we started 3rd game when we both had like 9-10 min on timer. During 3rd game i got hard lagging what results in losing by timer.

1. It is night and Leeching Lurker is on the battlefield
2. Cast 2 spells on your turn so it becomes day next turn(search party captain and curse of leeches)
3. Neither player has hexproof/shroud etc.
4. Actual: Upon Leeching Lurker's transformation it goes to the graveyard
5. Expected: I am given the choice to attach Curse of Leeches to target player, and the enchantment remains in play.

POST 12/15/21 Downtime mid game restart

Game will restart and may look like it replays through game again rapidly "on fast forward" up to the point the game reset.

When I played a faerie miscreant it's trigger activated and I drew a card even with it being the only card named Faerie Miscreant on the field.

I was going to win game3, no doubt, and the game suddenly crashed. I wasn't able to rejoin in time, and lost th egame. There is no reason for the game to crash like that, since I'm always playing and that never happend.

At the beginning of game two after i played my first land Shelldock Isle and was resolving the Hideaway trigger the game startet again. My Opponent and i both got a new hand of seven cards.
Each turn after that the client went directly to the cleanup step and made us discard a card due to maximum hand size.

I was playing when he played a card of Strixhaven (Expressive Iteration). Game broke. I saw all the game again since t1, like when you review a past game on Game Historial. Then the game restarted

I casted Investigator's journal and the message appeared

When a player is disconnected during gameplay, and often leads to being dropped from their event.

A creature died and I didn't get the trigger off of Morbid Opportunist.

Note ability:
Whenever one or more other creatures die, draw a card. This ability triggers only once each turn.

Giving flashback to split-cards (such as fire/ice) using snapcaster mage doesn't work.

1) Cast Snapcaster Mage target fire/ice
2) Add appropriate mana to your mana pool
3) Try to cast fire/ice
4) Actual: Spell doesn't gain flash back and can't be cast
5) Expected: Should be able to cast either half of the spell

The game I experienced this in was: 242796314

When lag causes a misclick or skipped action. The user isn't disconnected from the client though.

Katilda's ability is not working correctly. instead of allowing you to tap humans for mana it is instead acting as if it adds flavor text. I have had multiple turns where I could have done many things on my turn (Including using the other ability) but instead it is just flavor text that does not work

Adeline resplendant Cathar doesn't let you choose if you want to attack a planeswalker or the player with the token she creates

1) Attack with any creature while Adeline is on the board.
2) Adeline triggers but there is no prompt like you would expect on her text.
3) The token is created, attacking the opposing player whether or not you attacked a planeswalker or would like it to be attacking a planeswalker.

The game replayed itself then started match again with new hands. Also there was no priority neither for me or my opponent.

mid game it restarted, after the restart the game is just skipping through turns going immediately to discard

For when there is client confusion or an issue that can not be reproduced or attributed elsewhere.

Angel's grace is supposed to keep your life total on 1 when you are attacked for lethal damage. Since the last update, combat damage reduces it to minus life and you lose the game when the turn ends.

Stubborn denial ferocious doen't work.
Please fix this game-breacking bug