Fix for "SystemVersion.plist build version mismatch" + "An update is in progress" error in OCLP root patching

I recently struggled but finally managed to fix after trying again and again.

For anyone hitting the "SystemVersion.plist build version mismatch" + "An update is in progress" error in OCLP root patching:

1. Boot into safe mode (via OpenCore picker: hold Shift + Enter on macOS volume).
2. Open Terminal and run: textsudo rm -rf /System/Library/AssetsV2/com_apple_MobileAsset_MacSoftwareUpdate/* (This clears staged update files safely — the folder repopulates if needed, but purges the pending mismatch.)
3. Also clear /System/Volumes/Update/* if present (same sudo rm -rf).
4. Reboot in Safe Mode
5. Run latest OCLP → Post-Install Root Patch → Apply as usual.
6. Prevent recurrence: System Settings > Software Update > Advanced → Uncheck everything auto-related.

Hope this helps.