Post-Install Root Patch fails on Sequoia 15.3.2

Previous root patch on Sequoia 15.3.1 went just fine, now upgraded to 15.3.2 it fails :-(

Here is the output attempting Post Install Root Patch

- Determining Required Patch set for Darwin 24

Pulling metallib list from MetallibSupportPkg API

Direct match found for 24D81 (15.3.2)

metallib already installed (15.3.2-24D81), skipping

- Verifying whether Root Patching possible

- Patcher is capable of patching

- Mounted Universal-Binaries.dmg

Failed to mount root volume

Subprocess failed.

Command: ['/Library/PrivilegedHelperTools/com.Dortania.OpenCore-legacy-patcher.privileged-helper', '/sbin/mount', '-o', 'nobrowse', '-t', 'apfs', '/dev/disk2s4', '/System/Volumes/Update/mnt1']

Return Code: 161

Likely Enum: OCLP_PHT_ERROR_SET_UID_MISSING

Standard Output:

None

Standard Error:

None

Failed to mount root volume

- Failed to mount root volume, cannot continue with patching!!!

I tried to build and install OpenCore on EFI but got similar error both on disk0s1 and disk1s1

I have HD (disk0: High Sierra) + SSD (disk1: Sequoia just upgraded from 15.3.1 to 15.3.2), both have EFI partition.

Mounting partition: disk0s1

Mount failed

Subprocess failed.

Command: ['/Library/PrivilegedHelperTools/com.Dortania.OpenCore-legacy-patcher.privileged-helper', '/usr/sbin/diskutil', 'mount', 'disk0s1']

Return Code: 161

Likely Enum: OCLP_PHT_ERROR_SET_UID_MISSING

Standard Output:

None

Standard Error:

None

I also downloaded and manually run both:

- Kernel_Debug_Kit_15.3.2_build_24D81

- MetallibSupportPkg-15.3.2-24D81.pkg

Since initially the root patch was giving error with Metallib so I applied this:

https://www.reddit.com/r/OpenCoreLegacyPatcher/comments/1j34dwm/opencorepatcher_metallib_installation_failed_on/

Now I got the "Mount failed" issues above..

Please help! :-((