Automated import

/nfs/users/nfs_o/omero/OMERO.server-5.5.1-ice36-b122/bin/omero render set  /path/to/test.ome.tif.idlog /path/to/test.ome.tif.render.yml
...
/nfs/users/nfs_o/omero/OMERO.server render set: error: argument object: invalid 
proxy value:
'/path/to/test.ome.tif.idlog'

That’s the issue. bin/omero render set does not read the input object from a file, you will need to read the lines e.g. using cat as in my example above and pass it to the command.