TripIt and Concur cannot be used on Brave as of the last month or so, they prompt to accept/review cookies (using a TrustArc TRUSTe iframe) however the frame cannot be interacted with. Neither “Agree” and “View Cooking Settings” buttons work, and interestingly there is no colour change to suggest they’re being pressed.
Issue is present with Shields and without, regardless of Cookies or Fingerprinting configuration.
Both sites work correctly using Chrome 70.
Issue seen on Brave 0.25.2.