INSROLECHANGE, Supplementary Instance SSSS and non-Supplementary Instance IIII belong to the same Group
Receiver Server log/MUPIP Error: Issued by a Receiver Server or a MUPIP JOURNAL -ROLLBACK -FETCHRESYNC on Supplementary Instance SSSS attempted to connect to non-Supplementary Instance IIII, but found they have the same Group identification. Because supplementary and non-Supplementary Instances cannot belong to the same Group, one of these instances must have changed roles without appropriate re-initialization.
Action: Either reinitialize the instance that is changing roles or revert the inappropriate role change.