It has come to our attention that in some projects that had been administered by a specific user, if that one user had created a project filter which is picked as a major rule for the purpose of a project synchronisation, our plugins which offer a Gantt chart module may encounter the error once the mentioned user or their filter is deactivated or removed from JIRA’s perspective. This issue may create a false idea that the error occurs within the chart itself.
How the issue can manifest itself?
If one of your users with administrative permissions created a JIRA project filter which later was shared with a group of other users and picked as one of synchronisation rules (as per screenshots below), some synchronisation issues may occur in a couple of scenarios which you can familiarise with in the following sections:
Deleting the filter.
Deactivating the user.
In order to avoid this issue it is highly recomended for the main JIRA administrator to administer filter and synchronisation option.
Once the issue has already occured it is recomended to create a new filter with the same scope, yet in both cases 'Scope context User' has to be switched to a new one (preferably main JIRA admin as stated above).