RealityScan 2.1 crashes with SYSTEM_SERVICE_EXCEPTION 0x3b during Normal Detail reconstruction

Hi everyone, I am running into consistent crashes during reconstruction in RealityScan and hoping someone has seen this before.

Setup:

Lenovo Legion 7i Tower Gen 10

Intel Ultra 9 285K with 24 cores

RTX 5080 (Latest NVIDIA Studio Drivers- clean install)

96GB RAM, also tested with original 32GB

Windows 11 Home fully updated

Software:

RealityScan 2.1

Postshot and Metashape both work fine on this machine

Project:

About 3300 images at 20MP each

Alignment completes successfully

Crash happens when starting Normal Detail reconstruction

Issue:

System crashes with SYSTEM_SERVICE_EXCEPTION 0x3b and then restarts the PC

Happens consistently at the same stage of reconstruction

Debugging details from WinDbg:

Exception code 0xc0000005 access violation

Fault occurs in nt!CcCopyReadEx which is part of the Windows cache and file read path

Stack includes Ntfs.sys, FLTMGR, and NtReadFile

Crashing process is RealityScan.exe

What I have tried:

Moved cache between drives C and D

Tested dataset on separate drive and same drive

Disabled Windows Defender, indexing, and background services

Tested with different RAM configs from 32GB to 96GB

At this point it seems specific to RealityScan during reconstruction and heavy disk IO. Has anyone experienced similar crashes or found a workaround?

Appreciate any help

Sal