Problem

XFDebug opens but does not show new log lines for a running Navigator Server (the viewer is nearly empty and not updating).

Quick fix — try first (≈1 minute)

  1. Open XFDebugLog.exe.

  2. Configure → Message Monitor (Modules/Monitor).

  3. Find the Action/module that’s not producing entries (Server App, Render Action, Output Spooler, XiService, XiEvents, XiSpool, or the workflow action).

  4. Uncheck / disable the Action → Apply / OK.

  5. Wait 3–5 seconds, reopen Message Monitor, re-check / enable the Action → Apply / OK.

  6. Confirm XFDebug shows live log lines.

Full recovery — delete XFDebug key (two ways)

Caution: Only delete the single registry key below. This fixes XFDebug monitoring state. If you are not comfortable editing the registry, ask Support.

A — Regedit (GUI)

  1. Quit Navigator Server and close XFDebug.

  2. Run regedit.exe.

  3. Navigate to:
    HKEY_CURRENT_USER\SOFTWARE\Xitron\XiFlow\Debug

  4. Right-click Debug → Delete → confirm.

  5. Start Navigator Server and wait for it to initialize.

  6. Open XFDebugLog.exe.

    • Set Monitored Device to the hostname of the Navigator Server PC (do not use .).

    • Configure → Message Monitor → select the modules you want monitored → Apply.

  7. Verify XFDebug now streams live log lines.

Why: Setting the monitored device to . can trigger a mailslot creation error (Create Slot(...) FAILED ... error 5); using the server hostname avoids that.

B — Command line (Power users)

  1. Quit Navigator Server and close XFDebug.

  2. Open an elevated (Administrator) Command Prompt and run:

reg delete "HKCU\SOFTWARE\Xitron\XiFlow\Debug" /f

  1. Start Navigator Server.

  2. Open XFDebugLog.exe, set Monitored Device to the server hostname (not .), Configure → Message Monitor → select modules → Apply.

  3. Verify live logs appear.

If it still fails

  • Reboot the PC and retry the steps.

  • If logs still do not appear, collect these files and contact Support:
    XfDebug.log, clrip_*.log, XiService.log, XiEvents.log, appropriate Spooler log (DuraBolt/DuraFlex/XiSpooler), and NavigatorServer.log. Include a short note of the exact steps performed and any error messages (for example Create Slot(...) FAILED ... error 5).