Dynamic selects from pre-loaded data error

Hi @Mark_Huelsenbeck and welcome to the ODK forum! When you have a chance, I'd encourage you to introduce yourself here. Doing so helps build community!

I tested your form on my Collect 1.30.1 (Central 1.2 backend server) and it works smoothly.

Which version of collect are you using?
Which device and Android version are you testing it?

Aurelio