I have 30 lessons in queue, when I start lessons it keeps giving me the same 5 items. The lesson counter does not decrease after the quiz.
No userscript, internet connection works fine, Win10/Firefox74.
Do you possibly have WaniKani open in another tab somewhere?
May or may not have. It’s working again. I’ll mark it solved. But I think this has never been a problem before with multiple tabs open.