INVALID_PSD_URL When loading the editor with media

Just recently started getting this error on attempting to load the editor with our own media on startup:

INVALID_PSD_URL: Provided asset does not have the correct Photoshop Document
Error: Provided asset does not have the correct Photoshop Document

The integration has been working fine for months. I don't see any updates in the changelog that would break this. The editor works fine when started without any media.

I am using a URL to load the media into the editor.