STRMSEQMISMTCH, Unable to play update on Stream nnnn with seqno xxxx as receiving instance has a different stream seqno XXXX
Update Process log/MUPIP Error: Issued by the Update Process on a supplementary instance started with -UPDNOTOK (that is, local updates are disabled) when it finds the source and receiving instances have different values of stream sequence number for the non-Supplementary stream nnnn (can be any value from 1 through 15). This indicates the two instances are not in sync at least with respect to stream nnnn and so replication cannot proceed.
Action: Reinitialize the receiving instance from a backup of the source instance and restart replication between the two instances.