Hi Learning Resource,
Thanks for reaching out, and I'm sorry you're running into this!
It seems the issue may be within the files themselves since you're experiencing errors publishing to both Review 360 and for LMS. I first recommend checking that the files are saved locally. If not, save them to your C drive and then give it another try.
You'll want to make sure both your PowerPoint (.pptx) and Presenter files (.ppta) are saved together.
If you've confirmed this, share your Articulate package with our support team using the link below, and they can lend a hand with testing for any corrupt objects that may be causing the error!
Share your files with us!