Hi @nathanbrey1 ,
Here are some potential solutions for your reference:
1. Are you sure you pick the right site where the newly created list exists?
2. Check connection to ensure you have access to visit the list.
3. Try to remove the action "Create item" and add a new one.
4. Just create a new list in that site again for test.
If none of above works, find your list ID like this.




Community Support Team _ Wenjuan Zou
If this post helps, then please consider Accept it as the solution to help the other members find it.