Twitch is not optimised for macOS safari. Errors include #2000, #3000, and rarely #4000. These bugs do not occur on Google chrome, with #3000 being an exception. Cookies have been cleared, history wiped, pc restarted, account logged out/in, the codes still persist. No ad blockers, content blockers, or VPNs other than apples private relay that’s included in their service subscription; iCloud+