Update Root Patches Fail

I'm using a 2017 27" iMac 3.8 GHz Quad-Core Intel Core i5 (18,3) and I'm having trouble with my 14.2.1 update. I launched OpenCore, updated from 1.2 to 1.3, and updated root patches. Then I got stuck in the boot screen and couldn't enter Safe Mode. I re-installed from a time machine backup and re-installed the 1.2 root patches but they failed with error 71. I got the same result when I updated open core to 1.3.

The error is as follows:

Reason for Patch Failure (71): No variant specified, falling back to release Error Domain=KMErrorDomain Code=71 "Invalid argument: Unable to read contents of file at /System/Volumes/Update/ mnt1/System/Library/KernelCollections/ BootKernelExtensions.kc" UserInfo={NSLocalizedDescription=Invalid argument: Unable to read contents of file at /System/Volumes/Update/mnt1/System/ Library/KernelCollections/BootKernelExtensions.kc}

Please reboot the machine to avoid potential issues rerunning

​

Looking at the path these folders do not exist in my drive. Does anyone have any ideas what to do?