I am experiencing this issue last two weeks. I am coding and when I hit "save & submit code" button it just stuck. No error, no option to continue no anything. If I refresh the page code appear incomplete.
Sometimes when I finish my code a can still see some syntax errors in lesson sidebar with code results. When this happened, above reported problem happen also. It looks like code is not saved in some random point. It do not depend on some concrete code or course.
This issue was discussed already in this topic
My browser is updated. I appeared also in Firefox.
this is when I hit sava & submit button
Screenshot after refresh below
Do you have any ideas please?