diff --git a/docs/OPEN_ISSUES_FOR_TESTERS.txt b/docs/OPEN_ISSUES_FOR_TESTERS.txt
index d85368d..97d4c48 100644
--- a/docs/OPEN_ISSUES_FOR_TESTERS.txt
+++ b/docs/OPEN_ISSUES_FOR_TESTERS.txt
@@ -7,9 +7,12 @@
 =============================================================================
  HOW TO REPORT: drop a line in Discord with the issue number and PASS /
  FAIL / what you saw. Screenshots and rough times help.
- LOGS -- ONE CLICK: double-click SENDLOGS.bat in the game folder after the
- session. ONE small zip lands on your Desktop -- attach that. This build
- also names every shot fired in the log, so reports can name weapons.
+ LOGS -- ONE CLICK: CLOSE THE GAME, then double-click SENDLOGS.bat in the
+ game folder. ONE small zip lands on your Desktop -- attach that. It now
+ tells you the exact file it wrote; if it says SKIPPED, the game was still
+ running and holding that log. (Two of you hit errors last time -- both
+ causes are fixed, and it no longer claims success when it failed.) This
+ build also names every shot fired in the log, so reports can name weapons.
  SOUNDS: use the SOUNDBOARD zip's COPY button to reference an exact sound
  (that is how Oracle handed us the missile-alarm sample -- it worked).
  FIELD GUIDE: mark up your copy and send the file back. Oracle's return
diff --git a/players/SENDLOGS.bat b/players/SENDLOGS.bat
index 3e40112..b9d0386 100644
--- a/players/SENDLOGS.bat
+++ b/players/SENDLOGS.bat
@@ -5,15 +5,60 @@ rem  Double-click me after a playtest.  The zip lands on your DESKTOP as
 rem  BTLOGS_<machine>_<date>.zip -- attach that one file in Discord.
 rem  Collects: every session log, matchlog, and launch breadcrumb.  Nothing
 rem  is deleted or modified; this only makes a copy.
+rem
+rem  Field-hardened 2026-08-15 after two testers hit different failures:
+rem   * ConstrainedLanguage mode (locked-down Windows) blocks .NET calls, so
+rem     [Environment]::GetFolderPath and [math]::Round are gone -- the Desktop
+rem     is resolved from environment variables and the size via -f formatting.
+rem     Compress-Archive ALSO fails there (it is a script module that calls
+rem     .NET internally), so the zip is made with Windows' native tar.exe and
+rem     Compress-Archive is only the fallback if tar is missing.
+rem   * A log still held open by a running BattleTech made Compress-Archive
+rem     abort the WHOLE zip.  Files are now staged with Copy-Item first, so an
+rem     unreadable one is skipped and named instead of killing the run.
+rem   * The old script announced success unconditionally.  It now only says
+rem     the zip is ready if the file actually exists.
+rem  ABOUT.txt (machine, date, folder, exe version) rides inside the zip so we
+rem  can tell WHICH BUILD a report came from.
 rem ==========================================================================
 cd /d "%~dp0"
 powershell -NoProfile -ExecutionPolicy Bypass -Command ^
+  "$ErrorActionPreference = 'SilentlyContinue';" ^
   "$d = Get-Date -Format yyyyMMdd_HHmm;" ^
-  "$out = Join-Path ([Environment]::GetFolderPath('Desktop')) (\"BTLOGS_{0}_{1}.zip\" -f $env:COMPUTERNAME, $d);" ^
-  "$files = Get-ChildItem -Path 'content\*.log','content\lastrun_*.txt','content\matchlog_*.txt','content\cdb_*.txt' -ErrorAction SilentlyContinue | Where-Object { $_.LastWriteTime -gt (Get-Date).AddHours(-36) };" ^
-  "if (-not $files) { Write-Host 'No logs found -- run me from the BT411 folder (next to the content directory).'; exit 1 }" ^
-  "Compress-Archive -Force -Path $files.FullName -DestinationPath $out;" ^
-  "Write-Host ('Wrote ' + $out + '  (' + $files.Count + ' files, ' + [math]::Round((Get-Item $out).Length/1MB,1) + ' MB)');"
+  "$desk = $null;" ^
+  "if ($env:OneDrive -and (Test-Path (Join-Path $env:OneDrive 'Desktop'))) { $desk = Join-Path $env:OneDrive 'Desktop' }" ^
+  "elseif (Test-Path (Join-Path $env:USERPROFILE 'Desktop')) { $desk = Join-Path $env:USERPROFILE 'Desktop' }" ^
+  "else { $desk = $PWD.Path };" ^
+  "$out = Join-Path $desk ('BTLOGS_{0}_{1}.zip' -f $env:COMPUTERNAME, $d);" ^
+  "$files = Get-ChildItem -Path 'content\*.log','content\lastrun_*.txt','content\matchlog_*.txt','content\cdb_*.txt' | Where-Object { $_.LastWriteTime -gt (Get-Date).AddHours(-36) };" ^
+  "if (-not $files) { Write-Host ''; Write-Host '  No logs found -- run me from the BT411 folder (the one containing content).' -ForegroundColor Yellow; exit 1 };" ^
+  "$stage = Join-Path $env:TEMP ('BTLOGS_' + $d);" ^
+  "Remove-Item -Recurse -Force $stage;" ^
+  "New-Item -ItemType Directory -Path $stage -Force | Out-Null;" ^
+  "$kept = 0; $skip = @();" ^
+  "foreach ($f in $files) { Copy-Item -LiteralPath $f.FullName -Destination $stage -Force; if (Test-Path (Join-Path $stage $f.Name)) { $kept = $kept + 1 } else { $skip += $f.Name } };" ^
+  "$exe = Get-Item 'btl4.exe';" ^
+  "$about = Join-Path $stage 'ABOUT.txt';" ^
+  "Set-Content -Path $about -Value ('machine=' + $env:COMPUTERNAME);" ^
+  "Add-Content -Path $about -Value ('packed=' + $d);" ^
+  "Add-Content -Path $about -Value ('folder=' + $PWD.Path);" ^
+  "if ($exe) { Add-Content -Path $about -Value ('btl4.exe built ' + $exe.LastWriteTime); if ($exe.VersionInfo.FileVersion) { Add-Content -Path $about -Value ('btl4.exe version ' + $exe.VersionInfo.FileVersion) } };" ^
+  "if ($kept -eq 0) { Write-Host ''; Write-Host '  Could not read any log files -- close BattleTech, then run me again.' -ForegroundColor Red; exit 1 };" ^
+  "Remove-Item -Force $out;" ^
+  "Push-Location $stage;" ^
+  "if (Get-Command tar.exe) { tar.exe -a -c -f $out * } ;" ^
+  "Pop-Location;" ^
+  "if (-not (Test-Path $out)) { Compress-Archive -Force -Path (Join-Path $stage '*') -DestinationPath $out };" ^
+  "Remove-Item -Recurse -Force $stage;" ^
+  "Write-Host '';" ^
+  "if (Test-Path $out) { Write-Host ('  ZIP READY:  ' + $out) -ForegroundColor Green; Write-Host ('  ' + $kept + ' files, ' + ('{0:N1}' -f ((Get-Item $out).Length/1MB)) + ' MB'); if ($skip.Count -gt 0) { Write-Host ('  SKIPPED (still in use): ' + ($skip -join ', ')) -ForegroundColor Yellow; Write-Host '  Close BattleTech and run me again to include those.' -ForegroundColor Yellow } }" ^
+  "else { Write-Host '  FAILED -- no zip was created.' -ForegroundColor Red; Write-Host '  Screenshot this window and send it to us.' -ForegroundColor Red; exit 1 }"
+if errorlevel 1 goto :failed
 echo.
-echo Attach the BTLOGS zip from your Desktop in Discord. Thanks!
+echo Attach that BTLOGS zip in Discord. Thanks!
+goto :done
+:failed
+echo.
+echo Nothing was created -- see the message above.
+:done
 pause