Security Tab in Journey Not Working

Hello Experts,

we have below requirment:

A Journey needs to be created, and managed only by one team (e.g. Compensation Team), doing (assign, force complete, etc..), There should be no way for any other team to see, assign, or do anything with the journey.

I configured the system as below:

Having created a journey and added a role to the security tab, I assigned the role to the team, however, other HR people can still see the journey and can assign and work on it.

Thanks,

Mohamed Yousif,