Oooh, I see what you're saying. The issue isn't that the card was stuck somewhere in the terrain that objects weren't supposed to be in, the issue is that the card landed in an actual "game location" that was inaccessible to the player (at the time).
I hadn't even considered glitches like that could happen... I put in failsafes in case objects got stuck inside other objects but not that... I'll definitely look into it post-jam!