Hi @Gassim . After further investigation, it looks like there is an issue related with “bad configuration” and “unexpected API return”. Let me explain them
Bad configuration: In that dhis2 instance, there were programStageSection with dataElements. The problem is that the sortOrder of that DE is wrong (for instance, there is only one DE in that programStage section and the sortOrder is 4, instead of 1).
Unexpected return: The API returns null values in that case, that leads Capture app to not load properly.

A new jira ticket has been created in order to follow up that issue: [DHIS2-17342] - Jira