I merged multiple threads that all seem to be about the same thing - Eleven Rack's input doesn't mute when opening a session.
I repro'd this on my iMac with driver 1.2.13 and confirmed that 1.2.12 works properly.
avid.force.com/pkb/articles/download/Eleven-Rack-Drivers
Went through the posts here to make sure a support case is logged for each user. If you are experiencing this and don't have a case open please start one or reply to this thread and state your
Operating System and
Eleven Rack driver versions.
Thanks!