Do you not have Red Necromancy? I didn't test the upgrade duo without Red Necromancy. If that's the case, I'll take a look at that when I can
The export save system doesn't work with HTML5 because Godot's clipboard API is self-contained and can't get to the OS of the user. It's a problem I've been wanting to fix for awhile, but I've been holding out on it. Getting the save out of the cookies folder would be really obnoxious, and I don't know how to do it.
But it is useful to know that it's giving 0 instead of 1, it helps me know where to look in my code