The Health increase on Mantle of the Last Ox is applying an incorrect health buff

*31% health increase from Mantle of the Last Ox is only applying a 21% health increase to the character.
For an example, refer this reddit thread: https://www.reddit.com/r/LastEpoch/comments/1k5zzqt/can_anyone_explain_this_upgrade_that_leaves_me/

That post is from another player. I have the same issue. You can see it in the last epoch tools profile here: https://www.lastepochtools.com/profile/Aetylus/character/Thornton (as at 24/4/2025)

Thanks!