Game dev project treasure hunter is bugged out

I notice something really weird about the project as when you spent a long amount of time doing the project.
You hit save but the code does not load nor able to run the code at all.
I have to click all 24 boxes, click next project, then click back for it to able to load the code and run properly.
Sometimes the project does not even load nor does it save the written code as I tried to compare my code to Codecademy code.
Is this server overload? There must be some kind of bug still hidden in the project.