Same. I’ve never had any trouble creating profiles until today when I updated to 1.57.53. However, I tried adding new profiles to 3 computers. 2 of them faied (2017 iMac and 2023 Studio) and 1 succeeded (2022 MBP). All 3 are running Ventura 13.5.1. I expected all 3 to fail. I’ve no idea why the laptop works but the 2 other machines do not…
Having the same issue on a clean install of OSX Monterey on my desktop.
It works fine on my Macbook though. If you’re unable to add new profiles in Brave on multiple Mac computers since August 1, 2023, it could be due to a software issue. Check for updates and seek support from Brave or its community if the problem persists.
My solution to a similar problem, was just using the cli to create a new profile (MAC solution): /Applications/Brave\ Browser.app/Contents/MacOS/Brave\ Browser --profile-directory=the-new-profile-name"