I made a list of the lost cards (missing cards from collection), and it's far from what I expected to be, I've lost a total of 276 cards! I have some lead of what is preventing cards to be storaged in your collection. I hope people with this issue can confirm if their cause might be the same.
◉Theories why the cards that you get from drafts, packs and daily rewards are not kept in your collection:
-Maybe it's due to a connection error that prevents cards to be registered in the server even your victories/loses, daily/weekly wins and store purchases are properly tracked. That connection error might happen if you alt/tab your windows, i.e. switching Arena window to Chrome in order to choose a song from YouTube or check social media.
-It also might be because you're using a laptop, and when you plug/unplug the charger, the laptop disconnects from internet for a few seconds (1-3) (they have a energy saving program that triggers automatically even if it's disabled, that manages and switchs perfomance according if it's plug or not).
-And finally, my last guess, might be because the use MTGA Assistant, which displays overlayed in the game, and might affect the MTGA's connection.
I made a list of the lost cards (missing cards from collection), and it's far from what I expected to be, I've lost a total of 276 cards! I have some lead of what is preventing cards to be storaged in your collection. I hope people with this issue can confirm if their cause might be the same.
◉Theories why the cards that you get from drafts, packs and daily rewards are not kept in your collection:
-Maybe it's due to a connection error that prevents cards to be registered in the server even your victories/loses, daily/weekly wins and store purchases are properly tracked. That connection error might happen if you alt/tab your windows, i.e. switching Arena window to Chrome in order to choose a song from YouTube or check social media.
-It also might be because you're using a laptop, and when you plug/unplug the charger, the laptop disconnects from internet for a few seconds (1-3) (they have a energy saving program that triggers automatically even if it's disabled, that manages and switchs perfomance according if it's plug or not).
-And finally, my last guess, might be because the use MTGA Assistant, which displays overlayed in the game, and might affect the MTGA's connection.