Multiple submissions randomly appeared all at once on server days to weeks after submitting

I went ahead and tried to identify your project. If its name is “Inscripción” and it has an asset UID beginning with aZbWp, then I see 12 submissions there that have start dates in June and end dates in July. All 12 of those also have deprecatedIDs, indicating that they were edited with Enketo.

Please check with your team to find out who did the editing.

For reference, here’s an example from this project. Note that 10:12 in UTC-7 is 1:12 pm in UTC-4, which is where I’m guessing you were when you created the screenshot above.

<aZbWpxxxxxxxxxxxxxxxxx xmlns:jr="http://openrosa.org/javarosa" xmlns:orx="http://openrosa.org/xforms" xmlns:h="http://www.w3.org/1999/xhtml" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:ev="http://www.w3.org/2001/xml-events" xmlns:odk="http://www.opendatakit.org/xforms" id="aZbWpxxxxxxxxxxxxxxxxx" version="81 (2022-06-15 21:18:21)">
          <start>2022-06-28T14:30:42.409-06:00</start>
          <end>2022-07-14T10:12:49.744-07:00</end>
          <today>2022-06-28</today>
          <username>cxxxxxxxxxx_enum</username>
          <simserial>simserial not found</simserial>
          <!-- SNIP -->
          <__version__>vTTPQxxxxxxxxxxxxxxxxx</__version__>
          <_version_>v6oHxxxxxxxxxxxxxxxxxx</_version_>
          <_version__001>vrHgxxxxxxxxxxxxxxxxxx</_version__001>
          <_version__002>vcr4xxxxxxxxxxxxxxxxxx</_version__002>
          <meta>
            <instanceID>uuid:bb9ae8f3-xxxxxxxxxxxxxxxxxxxxxxxxxxx</instanceID>
          <deprecatedID>uuid:4b6cdbba-xxxxxxxxxxxxxxxxxxxxxxxxxxx</deprecatedID></meta>
        <formhub><uuid>7d2exxxxxxxxxxxxxxxxxxxxxxxxxxxx</uuid></formhub></aZbWpxxxxxxxxxxxxxxxxx>

Edit: as requested by @wroos, the _submission_time for this instance (looking at an XLS export instead of the table view, due to a time zone bug) is 2022-06-29T00:56:10. That is a UTC timestamp, and it tells us that about 4h25m elapsed between the enumerator first beginning the submission and the receipt of the completed submission by the server.

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