Continual Flame - not working?

[Risen]

I casted continual flame, both on my weapon and armour - nothing happened.

Is there something wrong with the spell? Or was I casting it incorrectly?
Is this a known issue?

[Bob]

The spell has been disabled, I think to avoid exploitation with sold items.

[Risen]

Bob,

Thanks for the update champ.
Muchly appreciated.