Librarian Book Manager & /reloadui weird interaction

[TSandman]

NB: As requested by Flamage, savedvariables for Librarian attached to the thread

Symptoms: If I've got Librarian enabled, /reloadui simply makes TESO unresponsive, to the point that nothing happens until I get bored or disconnected by the server (timing out)

The same thing is happening when trying to go to the Character selection screens by logging out of the current character.

This was happening before patch 1.1.2, it's just that I was also bitten by the unresponsive ESC key bug which requires /reloadui to (temporarily) fix...

Troubleshooting methods: Disable add-ons until /Reloadui worked

I'm aware that it could be an interaction with other add-ons, but Librarian is the only giving me that particular problemsd (got a truckload of add-ons currently enabled)