Hi @rpopan ,
I was able to reproduce this issue on my end. It looks like it occurs when using Download recipes with Folder datasets (e.g. the income_per_tract_usa dataset in your flow). DSS doesn't check the consistency of any object where the upstream inputs are only Folder datasets.
It looks like you're using the wrong tutorial project for the Flow Actions hands-on. The flow should look like this:
You can import the project by going to +NEW PROJECT > DSS Tutorials > Advanced Designer > Flow Views & Actions (Tutorial). You can also download it from here.
It also looks like you're missing the Census USA plugin. Please make sure the plugin is installed before you import the project, otherwise some objects will be missing from the flow.