Working on JSK games again. How would you advise moving about these two errors? For reference, the JSON file with the handy script is about 476kb. Edit: (looks like it doesn’t get the error if I limit it below 415kb, but it could just be a bad command.
Separately, I’m having this happen on a different one: 
No script connection is made until a scene is selected, then it acts as normal. The size of this one is only 376 kb.

