Troubleshooting
Internal Server Error
This message might be displayed when adding an invalid URL in the Site field. (i.e. The embed code)
The field only accepts the Share URL from Tableau:
Unexpected Error: Uncaught Failed to re-initialize session
This error message is generated by Tableau and it might be displayed when we are trying to add a new dashboard:
This is a known error from Tableau and they have documentation on possible workarounds for it:
Collecting Logs
Please, follow the documentation: Generating HAR files and analyzing web requests | Atlassian Support | Atlassian Documentation while reproducing the issue.
The browser console file is also valuable for investigation, please share it by following: Save Browser Console File