Game acting in unexpected ways...
I started a Bo1 Timeless match, proceeded through mulligans, my opponent played their land for the turn and completed their surveil and passed the turn. I drew, played a Flooded Strand but was not allowed to sacrifice it to search for a land so I eventually timed out. At some point it did move my Strand into my graveyard and possibly duplicated it, by turn 3 there were 2 in there though I only played out the first one. It may have been my auto-discard to hand size as I closed the game and came back during turn 3. On turn 3 my opponent played Show & Tell, I selected the Static Prison in my hand and hit submit but it just froze there and wouldn't allow my opponent's card or my prison to enter.