Export Rise Courses to Thinkific

So, Rise no longer supports framing, which I wish I had known before I paid for another year. So you need a pro plan with Thinkific, and rather than just sharing via the rise url you now have to upload the zip web file as multi-media content.

Secondly, I'm having issues uploading the rise zip folder as suggested by this article: https://support.thinkific.com/hc/en-us/articles/360050381793-Can-I-use-Rise-360-share-links-within-Multimedia-Lessons-

I'm getting an error message saying the zip folder must include a html file. I've redone the zip file so there isn't the extra layer of folder, and still the same issue. I'll see if thinkific can help me, their support is usually excellent.