Recovery loop

I've been trying to upgrade my 2017 Macbook Pro 13" (Model Macbook Pro 14,1) to Sequoia through Open Core Legacy Patcher based on this video: https://www.youtube.com/watch?v=in5-3EjKFqA

I've followed all the steps in the video and got to the step described at 7:12, but my laptop -instead of completing the installation - just goes back to "recovery mode" (with 4 options "Restore from Time Machine, Install macOS Sequoia, Safari, Disk Utility") as in the previous step. I have tried "Install MacOS Sequoia" several times, it always goes back to the recovery screen.

Has anyone else had this problem and how did you solve it?