Why is Apacheds not importing users with the top attribute set in the ldif file? - ldap

Question

Apacheds apacheds-2.0.0.AM26.exe. Importing ldif file with Apache Directory Studio 2.0.0.v20210213-M16
When "objectClass: top" is included in my ldif file I get an invalidAttributeSyntax error. Full error below.
I have deduced that it is the top attribute because all the other attributes show up normally in the log. The top one shows up as objectClass:: dG9wIA==.
If I remove top it works. If I put top back and import again with the update option it works.
Error:
#!RESULT ERROR
#!CONNECTION ldap://myhost:10389
#!DATE 2021-05-27T11:13:27.212
#!ERROR [LDAP result code 21 - invalidAttributeSyntax] INVALID_ATTRIBUTE_SYNTAX: failed for MessageType : ADD_REQUEST Message ID : 17 Add Request : Entry dn: uid=jsmith,ou=Users, dc=example,dc=com objectClass: top objectClass: person objectClass: organizationalPerson objectClass: inetorgperson uid: jsmith givenName: Jerry sn: Smith cn: Jerry Smith userPassword: 0x52 0x61 0x74 0x31 0x6F 0x6E 0x61 0x6C : ERR_13246_INVALID_VALUE_PER_SYNTAX Invalid upValue per syntax dn: uid=jsmith,ou=Users, dc=example,dc=com changetype: add uid: jsmith givenName: Jerry sn: Smith cn: Jerry Smith objectClass:: dG9wIA== objectClass: person objectClass: organizationalPerson objectClass: inetorgperson userPassword:: UmF0MW9uYWw=
Ldif data:
User:
dn: uid=jsmith,ou=Users,dc=example,dc=com
givenName: Jerry
sn: Smith
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: inetorgperson
uid: jsmith
cn: Jerry Smith
userPassword: MyPasswordInClearText
Ldif to create the Group and Users objects which I have tested both as part of the larger ldif file and as two separate imports. This part first then the users second.
dn: ou=Groups,dc=example,dc=com
objectClass: organizationalunit
objectClass: top
ou: Groups
dn: ou=Users,dc=example,dc=com
objectClass: organizationalunit
objectClass: top
ou: Users