Interactive Video

Video format not supported — localhost

I recently ditched MAMP for Mac-localhost, where I had H5P working well, for new localhost setup (installed with HomeBrew). Now everything works well except H5P video uploads, which invariably produce the error "Video format not supported" after upload appears to be successful.

Console shows 404 error for  http://wp.localhost/wp-content/uploads/h5p/editor/videos/files-5cb5e2950...

phpinfo shows