Failed to save modifications to the server when calling API

[Patto]

Hi everyone

I am getting the following error when I click "Apply Now" in power query.

Failed to save modifications to the server. Error returned: 'Expression in partition 'n/a' in table 'n/a' references an unknown entity.

I have an advanced query I wrote that works perfectly in power query until I hit the apply button to go back to my report.

The query calls an API and using paging to get all the data before constructing my final table.

Does anyone know what this error is?

Thanks

Patto