KEYTYPE_BYTES_FOUND_CWOBJ4912=CWOBJ4912E: The {0} local domain will not send updates to the {1} foreign domain for {2}:{3} because the {4} map is configured as a bytes-for-keys map in the {5} domain that contains the bytes for keys.
Explanation
Map sets containing bytes for keys are not supported in an environment with multiple primary shards.
User response
Remove bytes-for-keys maps from the map set to enable primary shards in both domains for this map set. No action is required if you do not want to support a multiple primary shard topology with this map set.