i think muser11 is talkin about stamina bar for chariot races in hippodrome
During the last years, I used many many trainers for the AC games from Cheathappens.
So I can say: Your "problem" is normal. In every game I can remember so far, the Super Stealth option "disabled" some interactions. You have to deactivate the option to use chests again oder speak with people. Nothing to worry about.
EDIT: Did someone try you cheat the points in the Hippodrome using Cosmos? Maybe it works, but I didn't test it yet.
[Edited by SethAC, 10/29/2017 5:53:25 AM]