Review version of Storyline not processing

Hi! I have a Storyline course which I want to share with a stakeholder. It's been shared successfully before, but I have made some changes and I want to share a new link. I can publish it, and Articulate tells me it's been successful and gives me a Review link, but when I click the link, it is stuck on the grey screen that says its still processing, and has been for more than 3 hours. I've tried different browsers, republishing it with a new name, overwriting an existing Review version, saving a new version of the course and republishing, and updating Storyline, but the same thing happens each time. When I go to publish it to Review, Storyline tells me 'you have not published this project before', even though I have. I can publish other courses, and single slides from this course, but not the whole course.

I've also tried publishing it as a SCORM file, and as a Web file, and manually uploading it to Review, but each time I get an error message saying 'the file you selected is not a supported file type'.

However, the course does work fine when loaded to Scorm cloud.

This is the Review link: https://360.articulate.com/review/content/aef394b7-bbc7-4c79-aa11-601989eeeedd/review