Google Chrome sandoxing is by-default dropped not by the IPS but by inspection engine. I have had the same and when made myself a Chromium instead - all started to work. Indeed it is a Chrome to blame not anything on CP R80.10.
Please try Chromium or make a "fresh" Chrome install with no sign-in to Google Account and try agian. Hope it helps if not - indeed as boss suggested please DO engage TAC,. I'm keen to get this sorted as well as it is one of the crucial parts of the intercepting Google's Cluod communication chain
Jerry
Jerry