I am running into a perplexing problme while trying to stand up two replicas. From a fresh ubuntu 18.04 installation, installing, loading custom schema, and configuring 389-ds and upon a replica initiation certain entries are throwing this error -

Error adding object 'dn: uid=USER,ou=People,dc=cca,dc=edu'.  The error sent by the server was 'Object class violation. missing required attribute "objectclass"

I have tried initializing with a ldif file as well but get the same error. I have not edited the dse.ldif file from what ubuntu installed. I have installed other replicas with no issues.

389-Directory/ B2018.107.1745 on Ubuntu 18.04.5 LTS \n \l