Hello aowhitaker,
It looks like you're having some trouble saving a presentation you have created in Keynote on your iPad Pro. It's important to make sure your changes or new presentations are saved properly to access later. We're glad you reached out for help.
Start by taking a look at the available storage on your iPad Pro.
How to check the storage on your iPhone, iPad, and iPod touch
If storage is not an issue review the steps to save your Keynote here:
Save and name a Keynote presentation on iPad
If you continue to have issues reach out to Apple Support here: Get Support
Take care!