No worries. I know the pain of last minute bugs that only show up in packaged builds :X Bugs or no, you still got something submitted, which is commendable, especially being your first attempt. Keep up the good work.
Thank you very much for your kind words! You made me feel much better about this whole situation! And... just to give you more context about the game, the caves are the spawn points for the enemies. They were supposed to be entrances to other areas but as I ran out of time, decided to ditch the idea. The caves were supposed to spawn enemies every 10 seconds. I wrote the code for that in an autoload script in Godot, in the process function, which could possibly be the reason why it didn't work. I'm still not sure.
I really liked making games on a deadline, and I'll try more game jams to get more experience. I feel like I'm on the right path!