Hello,
I've been searching the forum to see if anyone else has ran into this issue and haven't found much aside from this one post: https://community.esri.com/t5/arcgis-survey123-questions/issue-with-select-one-question-autocomplete-in/td-p/1364027.
I'm having a similar issue where I'm using the Search() appearance to retrieve my choice list from a hosted and linked CSV. When I open the dropdown menu in the form it immediately closes itself. I'm using this CSV for several lists in this form and so far none of the other fields have displayed this behavior.
I've linked my xlsx form in case anyone can take a look and see what's causing this.
Thanks!