Ever since I first met Sagani and took her aboard her Endurance doesn't regenerate to its limit. Even after resting. It always reaches a certain point that is subject to maximal Endurance value, as the gap grows when she reaches next level and rises her Endurance points. There is a grayed-out bar on the upper part of her portrait spanning from the top to the level marking the Endurance value she recovers to.

 

Hi Davenv,

 

This is an issue QA has been trying to nail down for a while. Please see http://forums.obsidian.net/topic/79382-issuebug-hiravias-stuck-at-half-endurance/ for the discussion in regard to this issue. 

Thank you for linking to the discussion. I'm sure you'll work it out some time soon!