Survey123 for ArcGIS surveys which are using the coalesce(value1, value2) function display the first feature in the function when taking the survey in a web browser.
Duplicate of BUG-000121994: While the coalesce function calculates and sends the expected result on submit in the Survey123 web app, the result displayed for the coalesce function prior to the submission is incorrect. The underlying issue is, the value for a non-relevant question is not cleared during the web app session. This means the incorrect result is displayed for the coalesce calculation, as the non-relevant value is being honoured. The issue with values not being cleared from questions that have changed from relevant to non-relevant has previously been reported as BUG-000121994.