Go to the MC functions menu at top right of mixer (Down arrow).
Hold ALT before clicking on it.
Select Reset MixConsole Window (NOT MixConsole Channels which will zero your mix).
Did as instructed but still have the issue, without zones selected there is no problem , only when i set up zones can i duplicate the issue. I’ve seen tutorial videos where the Use has zones set like i have and it docent seem to be having the issue. Recently performed a fresh instal of Cubase, i had this problem before and after. i think its something caused because this project was started in Cubase 8… I’ve checked the couple projects i started in cubase 8.5 and can not duplicate the problem