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.

I’m experiencing the same issue. Please check the following GIF:
2025-06-19_13h27_49

Hi @Kal_Lam,

I realized the same thing yesterday, i wanted to use the select fields subset but it doesn’t accept and value, even it doesn’t allow you to copy paste to this field. I think there is problem in that field