We have been trying to update some library versions by uninstalling the old versions and installing new ones. However, the old libraries continue to get installed on cluster startup despite not showing up in the "libraries" tab of the cluster page. We can see in the log4j logs that they're getting installed, and we can import them in notebooks to verify that their versions are what we're trying to uninstall. Is this a known issue? How can I view/modify what the cluster decides to install on startup if it's not the libraries tab?