Bulk photo import " not specified one or more required parameters."

Hi, have tried bulk photo import on an earlier test version and it was working fine (on Windows dev machine). Now replicating the same procedure on a GCP Ubuntu LAMP instance and keeps getting the error “You have not specified one or more required parameters.”

Same error even if I used the same original zip file (it was missing a few recently enrolled students). Planning to start UAT in a couple of days with the teachers, so really want to get this working. Thanks!

Found how to resolve this - for those interested - this is caused by PHP config on max file size upload, which was defaulted to 8mb. Please refer to link