Hey Beth and welcome to E-Learning Heroes. 😊
Thanks for reaching out and sharing that you're running into an issue publishing to Review 360 as well.
I'm not clear on what version of Storyline you're currently using.
You can check by going to:
Help > About Articulate Storyline
We are currently on Build 3.48.24116.0 of Storyline 360. You can read all of the details (and see previous updates) here.
With your permission, I'd like to take a look at your project file to investigate what's happening. You can share it publicly here, or send it to me privately by uploading it here. I'll delete it when I'm done troubleshooting.