REST service API subfields not working

Dear Kobo community,

I’ve created a project on the EU Server. I’ve created a REST service API to connect with our own calculation model. However, when I try to add a subset field, the REST service doesn’t save the field, neither by pressing “Enter” or “Tab”. For previous projects we didn’t have any issues.

Welcome to the community, @lanaliem! Could you share a screenshot of which field is not working? That should give us an understanding of your issue pictorially.