Cannot export observations when searching for multiple user_ids

Any idea why when I create a download from a URL like this (with multiple user_id) it just has the header row but no data? A URL with multiple taxon_id creates a download without problems. Is this a bug? (I’m creating a download by clicking Filters>Download>Create export.)

I recently also was unable to generate an export based on multiple user_ids. You can use a Collection project as one way to get around it: https://www.inaturalist.org/projects/new

Note: I just moved this to its own topic. And, welcome to the iNat Forum!