I'm seeing the same on our end. We are using 9.81, I'm going to try and upgrade to the latest version and run the updated recon app. About halfway through our recons, windows states that jamf has stopped working and finally recon displays the "Failed to submit data to the JSS" message.
Edit: Upgraded JSS to 9.1 and am still unable to run recon.exe without the error message. We have a few extension attributes that I might try to disable to see if I can narrow down the list of possible points of failure.
Support for Recon.exe came to an end on December 31, 2017 and we stopped distributing it with version 9.100.
We do not offer Recon.exe any longer for download as support for the product has ended.
If you have questions about what's currently recommended for Windows inventory, please contact Support.
Jamf Customer Experience