Hi. Currently, I am using ODK Collect v1.29.3 and the KoboToolBox server. However, recently I had a problem concerning the forms update. There are some times that I update the forms on ODK Collect and when I try to open a form, the ODK Collect shows this error message: "Document has no root element!"
Thanks for posting about this! Can you please share one of the forms you are experiencing this with? If it's not sensitive, attaching it to a response would be ideal. If it is sensitive you could send a direct message to me, to another of the core developers or an email to the support address listed. We would use the form for troubleshooting and then delete it.
Thanks for helping us! @ricardonfc will soon be sending you a direct message with a sample form. But it is strange how forms that have been in use since the beginning of last year and have always worked properly are presenting the same problem.
We noticed the first occurrence of the problem on 12/01/2021, from when it became recurrent and spread to other forms. We are asking our enumerators to continue updating the forms until the "form updated successfully" message appears. This is solving the problem for now.