Jira's REST API (/rest/api/3/mypermissions), was updated this morning and these changes are making some services unavailable, affecting the access to Mindpro Sync's "Connections" and "Configuration" pages. All other functionalities such as loading attributes in the issues, set approvers and displaying hierarchy are up and running normally.
Mindpro Deliver is also affected by this issue, having screens unavailable.
We are in touch with Atlassian to resolve the issue ASAP.