It turns out the schema for the database was inconsistent. Had to run SQL queries to change this and now clients are showing in GUI
To find default schema
select ssp.name[SQL Login],
sdp.default_schema_name[Default Schema] FROM sys.server_principals ssp INNER JOIN sys.database_principals sdp on ssp.sid = sdp.sid WHERE ssp.name = <SQL Login>
To find tables and views that do NOT have default schema
SELECT ist.TABLE_SCHEMA,ist.TABLE_NAME FROM INFORMATION_SCHEMA.TABLES ist WHERE TABLE_CATALOG =<Database Name>
AND ist.TABLE_SCHEMA NOT IN (
select default_schema_name[Default Schema] FROM sys.server_principals ssp INNER JOIN sys.database_principals sdp on ssp.sid = sdp.sid WHERE ssp.name=<SQL Login>)
And finally, update tables and views with incorrect schema to have default schema
ALTER SCHEMA <Default Schema> TRANSFER <Incorrect Schema>.Name of table or view