Thank you very much. I changed to the System Launcher and then back to the one I use, and I can now access settings with no issues. Keep up the good work, thank you.
After updating to 13.0.9 today, it opens these settings and one second later it throws me back to the main menu. My theme is the default and I have restarted the phone.
Thanks a lot for this ROM guide. I also used this video, which I found it to be excellent on providing step by step guidance on how to install TWRP and then flash the ROM on my Mi 11 Ultra Chinese ROM. Maybe you could add this on the first post, OP?