In Survey123 Connect, I have multiple questions in the repeat with the following expression in body::esri:visible:
(${repeat_index}=1) or ( ${repeat_index}!=1 and ${is_active}='Yes')
(only display the question when it's the first entry, or if it's not the first entry and you marked is_active to yes.
Within a repeat, I'm getting this error on my form when toggling a yes/no (is_active) question to "No". I'm assuming it's related to the aforementioned questions, because they are affected by the change.
This works fine in Survey123 Connect.