Hello Tenno!
Quick PSA to bring visibility to an issue we're actively investigating.
Currently the rewards indicated from defeating your Kuva Lich/Sister (weapon Elemental bonus, Ephemera, etc) are not what's actually given to the player. For example, your Kuva Lich Adversary has a 51% bonus. Upon receiving your weapon from Vanquishing it actually has a 28.4% bonus. Clearly wrong! A Kuva Lich’s equipped Ephemera may also be different, and for Corpus Sisters, their Hound might also be different.
We’ll update this thread when we know what the next resolution steps are. (You may want to avoid doing your Lich/Sister showdown until we resolve this)
UPDATE
19:18 eastern time
We've hot-dropped a fix to all platforms for the server side mission rewards script that was causing this problem. Kuva Liches and Sisters of Parvos should now once again reward you with what they show on your summary screen.
Tomorrow we will begin addressing compensations for the players who did their Lich/Sister showdown in the window between 11:00 and now and didn't get what they were hoping for. Further updates to follow once that process is underway!
Edited by [DE]Momaw