Chain Validation Failed

Hi, dear all.
When pushing collected data to Aggregate (data collected with odkcollect installed on a Samsung mobile device), we got the following error message:
"Error GenericException: Chain validation failed"
In advance, thanks for your help to solve this problem.
Kind regards,

Hi @Amal, please fill out the support template.

  1. What ODK versions are you using?
  2. What steps can we take to reproduce the problem?
  3. What you have you tried to fix the problem?
  4. Anything else we should know or have? If you have a test form or screenshots or logs, please attach.

Hi, dear Yaw.
Many thanks for your reply.
These data were being sending from a remote device to my Aggregate (v1.6.0)
I had adviced the sender to upgrade his installed ODKCollect to one of its latest versions (his installed version was very old (v1.4....)): this has solved the problem and the data are now successfully sent to my Aggregate server.
Thanks again
Kind regards,

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