You need to restart the Studio after installing required third-party libraries - 6.2

Talend Data Fabric Release Notes
EnrichVersion
6.2
EnrichProdName
Talend Data Fabric
task
Installation and Upgrade
EnrichPlatform
Talend Activity Monitoring Console
Talend Administration Center
Talend Artifact Repository
Talend CommandLine
Talend DQ Portal
Talend ESB
Talend Identity Management
Talend Installer
Talend JobServer
Talend Log Server
Talend MDM Server
Talend MDM Web UI
Talend Project Audit
Talend Repository Manager
Talend Runtime
Talend SAP RFC Server
Talend Studio

After you install any required third-party libraries, you need to restart the Studio for your updates to be taken into account.