i cant side board cards
during the metagame challenge event, the side board screen did not show the cards and I was unable to exchange cards from the deck with the side.

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karatedancer#15091 commented
I can't Side board in a match
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Rulerzac#16162 commented
I can't Side board in a match
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MrP05171v17y#64809 commented
I was able to sideboard after winning the first game of the match. Submitted that’s deck to use. I continued to say my opponent was sideboarding for 3 minutes, then came up as I was defeated for the match.
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Glacier#44518 commented
bug
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hutch#23666 commented
I have reinstalled twice, deleted and recreated the deck, and deleted all associated files with MTGA and my deck still won't side board. This is bizarre.
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hutch#23666 commented
I timed out my sideboard one game and had to play without any sideboard changes. But after that happened once, since then I can't side board with this deck. I've played like 6 different games with the deck and every time it does not accept any changes to the deck post side boarding.