I have participated in so many GWJ that I have lost count, so I tend to just put a randi() % 10,000 number. :P
I got that freezing once on Windows as well, but it never happened again so I didn't worry too much about it! I wonder what it could have been. Maybe it was some Godot thing loading, no clue.
Thanks for the kind words! We have a great team for sure.