Bug: Copying Large files Issue

[auzideals]

Description

using easeus to do backup software for imaging drives/computers, copy from computer to my nas, or from nas to computer, status lightd green, no progress, straight into completed status, images 27GB, 32GB, 62GB all failed, using draging with UAC at always notify, even using Ctrl C / Ctrl V, at any level of UAC, still fails, copying small files and directories works ok, progress status is working.
image file naming B550-3900X-Disk_20251109_Full_v1.pbd
This is the latest bought from miscrosoft store just yesterday, uninstalled, reinstalltion same issue.

Steps To Reproduce

draging, copying using ctrl C/ ctrl V, diffrent level UAC, still not working, status lights up immediately in full green as completed task

Files Version

4.0.11.0

Windows Version

10.0.26200.7019

User ID

eeed5de4-5f4c-455e-9e0e-271ea4609a31

Log File

debug.log

[Josh65-2201]

Thanks for the report, does Windows File Explorer show any errors when coping?

[auzideals]

No, file explorer works fine, only file 4 fails to copy and green status is showing immediately Yesterday I installed it on a new system has only os and office, still file 4 does the same thing, status showing immediately completed green task and files not showing to destination Moh Mubaslat ***@***.*** Australia

…

On Tue, 11 Nov 2025, 3:31 am Josh65-2201, ***@***.***> wrote: *Josh65-2201* left a comment (files-community/Files#17838) <#17838 (comment)> Thanks for the report, does Windows File Explorer show any errors when coping? — Reply to this email directly, view it on GitHub <#17838 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BZ5P6HNBEPLHOWMKFQ5QVXL34C4W3AVCNFSM6AAAAACLTD5RWWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTKMJSG4YDIMJZGQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[auzideals]

Hi Team
Today i tried Files to copy these system images into a local drive and a usb external drive, same issue, status lit full green and ststus comleted, no backup either local or external drives, hopefully this helps in your investigation, using windows file explorer works perfect.