sgw indexes failed to create with ipv6only setup

CREATE INDEX `sg_syncDocs_x1` ON `data-bucket`(META().id) WHERE META().id LIKE '\\_sync:%' with {"defer_build":true}

Error creating index sg_channels_x1: Error creating index with statement: CREATE INDEX `sg_channels_x1` ON `data-bucket`(ALL (ARRAY [op.name, LEAST(meta().xattrs._sync.sequence,op.val.seq), IFMISSING(op.val.rev,null), IFMISSING(op.val.del,null)] FOR op IN OBJECT_PAIRS(meta().xattrs._sync.channels) END), meta().xattrs._sync.rev, meta().xattrs._sync.sequence, meta().xattrs._sync.flags) with {"retain_deleted_xattr":true,"defer_build":true}.  Error: internal server failure | {"statement":"CREATE INDEX `sg_channels_x1` ON `data-bucket`(ALL (ARRAY [op.name, LEAST(meta().xattrs._sync.sequence,op.val.seq), IFMISSING(op.val.rev,null), IFMISSING(op.val.del,null)] FOR op IN OBJECT_PAIRS(meta().xattrs._sync.channels) END), meta().xattrs._sync.rev, meta().xattrs._sync.sequence, meta().xattrs._sync.flags) with {\"retain_deleted_xattr\":true,\"defer_build\":true}","client_context_id":"6fd77521-f33c-4666-ab94-c78987f22cd1","errors":[{"Code":5000,"Message":"GSI CreateIndex() - cause: Index creation for index sg_channels_x1, bucket data-bucket, scope _default, collection _default cannot start. Reason: Fails to create index.  There is no available index service that can process this request at this time. Index Service can be in bootstrap, recovery, or non-reachable. Please retry the operation at a later time.."}]} - will retry. -- db.(*SGIndex).createIfNeeded.func1() at indexes.go:264