Is replication of a subset of a ldap-db supported/possible with openldap?

Issue

• We are running a rhel7.2 openldap system as provider, and one system as consumer for a replication.
• When multiple bases are configured for replication, then this fails at our site.
• Could you please have a look to find out more? Is replication of multiple searchbases supported?
• I see errors like this:

slapd[9422]: do_syncrep2: rid=001 LDAP_RES_INTERMEDIATE - NEW_COOKIE
slapd[9422]: do_syncrep2: rid=001 NEW_COOKIE: rid=001,csn=20170515023929.656704Z#000000#000#000000
slapd[9422]: slap_queue_csn: queueing 0x7f22f810eac0 20170515023929.656704Z#000000#000#000000
slapd[9422]: do_syncrep2: rid=002 cookie=rid=002,csn=20170515023929.656704Z#000000#000#000000
slapd[9422]: slap_graduate_commit_csn: removing 0x7f22f8109100 20170515023929.656704Z#000000#000#000000
slapd[9422]: do_syncrep2: rid=002 CSN too old, ignoring 20170515023929.656704Z#000000#000#000000 (uid=user12,ou=group2,dc=example,dc=com)