Here is the log file, no errors indicating any copying issues.
+00:07 (qrc:/main.qml, 221) qrc:/main.qml:221:17: QML Rectangle: Binding loop detected for property "height"
+00:38 (, 0) Refreshing drives
+00:40 (, 0) Found 1 drives
+00:56 (, 0) Downloading "package.json"
+00:56 (, 0) Using path "C:/Users/Administrator/AppData/Local/Emteria/Installer/rpi3-v0.5.2/package.json"
+00:56 (, 0) Finished download of "package.json"
+00:56 (, 0) Checking for OEM config..
+00:56 (, 0) Retrieved OEM config len = 0
+00:56 (, 0) Downloading "boot.zip"
+00:56 (, 0) Using path "C:/Users/Administrator/AppData/Local/Emteria/Installer/rpi3-v0.5.2/boot.zip"
+01:17 (, 0) Finished download of "boot.zip"
+01:17 (, 0) Downloading "oem.zip"
+01:17 (, 0) Using path "C:/Users/Administrator/AppData/Local/Emteria/Installer/rpi3-v0.5.2/oem.zip"
+01:17 (, 0) Finished download of "oem.zip"
+01:17 (, 0) Downloading "system.zip"
+01:17 (, 0) Using path "C:/Users/Administrator/AppData/Local/Emteria/Installer/rpi3-v0.5.2/system.zip"
+05:21 (, 0) Finished download of "system.zip"
+05:21 (, 0) Finished DownloadWorker
+05:21 (, 0) Flashing on raw "\\\\.\\PHYSICALDRIVE4"
+05:21 (, 0) Initializing PackageWriter
+05:21 (, 0) Package base path: "C:/Users/Administrator/AppData/Local/Emteria/Installer/rpi3-v0.5.2"
+05:21 (, 0) Drive: "Generic STORAGE DEVICE USB Device" with 16567500800 bytes
+05:21 (, 0) Raw at "\\\\.\\PHYSICALDRIVE4"
+05:21 (, 0) Mounted at "G:"
+05:21 (, 0) PackageWriter initialized successfully
+05:21 (, 0) Starting step 0 Reading package
+05:21 (, 0) Finished step 0 Reading package
+05:21 (, 0) Starting step 1 Verifying files
+05:21 (, 0) Skipping "ota.zip" as it isn't required for flashing
+05:22 (, 0) Finished step 1 Verifying files
+05:22 (, 0) Starting step 2 Preparing
+05:28 (, 0) Diskpart output: "\r\nMicrosoft DiskPart version 6.1.7601\r\nCopyright (C) 1999-2008 Microsoft Corporation.\r\nOn computer: LUCY\r\n\r\nDisk 4 is now the selected disk.\r\n\r\nVolume 4 is the selected volume.\r\n\r\nDiskPart successfully removed the drive letter or mount point.\r\n\r\nPlease wait while DiskPart scans your configuration...\r\n\r\nDiskPart has finished scanning your configuration.\r\n"
+05:28 (, 0) Diskpart error: ""
+05:35 (, 0) Diskpart output: "\r\nMicrosoft DiskPart version 6.1.7601\r\nCopyright (C) 1999-2008 Microsoft Corporation.\r\nOn computer: LUCY\r\n\r\nDisk 4 is now the selected disk.\r\n\r\nDiskPart succeeded in cleaning the disk.\r\n\r\nPlease wait while DiskPart scans your configuration...\r\n\r\nDiskPart has finished scanning your configuration.\r\n"
+05:35 (, 0) Diskpart error: ""
+05:37 (, 0) Finished step 2 Preparing
+05:37 (, 0) Starting step 3 Opening to write
+05:37 (, 0) Finished step 3 Opening to write
+05:37 (, 0) Assuming drive has 32358400 sectors
+05:37 (, 0) Processing 4 partitions
+05:37 (, 0) Processing partition "boot"
+05:37 (, 0) Using LBA of 2048
+05:37 (, 0) Size determined from zip source: 65011712
+05:37 (, 0) Partition will occupy 126976 sectors
+05:37 (, 0) Processing partition "system"
+05:37 (, 0) Using LBA of 129024
+05:37 (, 0) Size determined from zip source: 2147483648
+05:37 (, 0) Partition will occupy 4194304 sectors
+05:37 (, 0) Processing partition "oem"
+05:37 (, 0) Using LBA of 4323328
+05:37 (, 0) Size determined from zip source: 67108864
+05:37 (, 0) Partition will occupy 131072 sectors
+05:37 (, 0) Processing partition "userdata"
+05:37 (, 0) Using LBA of 4454400
+05:37 (, 0) Processing dynamically sized partition "userdata"
+05:37 (, 0) Partition will start at LBA 4454400
+05:37 (, 0) Remaining sectors on drive: 27904000
+05:37 (, 0) Starting step 4 Writing MBR
+05:37 (, 0) Partitions in MBR:
+05:37 (, 0) Partition 0 bootable true LBA 2048 size 126976
+05:37 (, 0) Partition 1 bootable false LBA 129024 size 4194304
+05:37 (, 0) Partition 2 bootable false LBA 4323328 size 131072
+05:37 (, 0) Partition 3 bootable false LBA 4454400 size 27904000
+05:37 (, 0) Finished step 4 Writing MBR
+05:37 (, 0) Starting step 5 Writing file
+05:37 (, 0) Using zip file at "C:/Users/Administrator/AppData/Local/Emteria/Installer/rpi3-v0.5.2/boot.zip"
+05:52 (, 0) Finished step 5 Writing file
+05:52 (, 0) Starting step 5 Writing file
+05:52 (, 0) Using zip file at "C:/Users/Administrator/AppData/Local/Emteria/Installer/rpi3-v0.5.2/system.zip"
+14:29 (, 0) Finished step 5 Writing file
+14:29 (, 0) Starting step 5 Writing file
+14:29 (, 0) Using zip file at "C:/Users/Administrator/AppData/Local/Emteria/Installer/rpi3-v0.5.2/oem.zip"
+14:29 (, 0) Failed to set file pointer: 0
+14:45 (, 0) Finished step 5 Writing file
+14:45 (, 0) Starting step 6 Creating file system
+14:45 (, 0) Creating ext4 filesystem from scratch, ideal size is 27904000
+14:45 (, 0) Closest script size is 24099840
+15:41 (, 0) Finished step 6 Creating file system
+15:41 (, 0) Starting step 7 Validating
+15:46 (, 0) Finished step 7 Validating
+15:46 (, 0) Starting step 9 Finalizing
+15:46 (, 0) Ejected drive
+15:46 (, 0) Finished step 9 Finalizing