Upgrading MacBookPro10,1 to Sequoia 15.7: USB stick does not boot, panics with "root image validation failed"

I am trying to upgrade a MacBook Pro (Retina, Mid-2012) AKA MacBookPro10,1 to Sequoia 15.7 using OCLP 2.4.1.

The MacBook is currently running Catalina 10.15.7 (the latest supported version). I take it that upgrading from 10.15.7 to 15.7 is supported without needing to go through MacOS 11, 12, 13, 14, and 15 first, correct?

I have created a patched installation system on an USB stick using OCLP, and I am booting according to the guide (hold ALT, select EFI boot, the select "Install Sequoia"), but the MacBook freezes with the progress bar at ~5% when booting the installation system from the stick. After enabling a verbose boot, I can see boot messages scroll by, indicating that the system panics when trying to verify the root image:

authenticate_root_with_chunklist: failed to validate root image against chunklist (22) panic (...): root image authentication failed (err = 22) u/imageboot.c:1877 

What am I doing wrong?

PS: It looks like the Discord invites linked from the OCLP GitHub and from within the app have expired, I am unable to join the OCLP community Discord.