[Redeyes]

It has always worked for me (case in point - I just tested it using 3.23 and .24...)

Are you certain the spell was cast and that you checked the right commander?

Are you using any mods?


There's a spell available to T'ien C'hi (inner alchemy) with the same effect as rejuvenation.

Permanent regeneration effects such as that gained gear slows the acquiring of new afflictions and stops disease damage entirely, so that's a way to save old but important commanders.

Iirc, the Elixir of Life and Boots of Youth items prevent aging.