UltraVNC 1.6.4.0 - Multiple icons in task bar

[ute4MOSS]

Dear all,

We are experiencing a tray icon accumulation of UltraVNC: Over days of uninterrupted uptime, the system tray spontaneously accumulates many UltraVNC icons.
Important: this occurs even when no incoming VNC connections or remote control sessions take place.

A system reboot clears all extra icons, but the accumulation resumes over subsequent days of continuous operation. Furthermore, gradual UI responsiveness lag on the local industrial touch screen panel.
We are not sure that this low responsivess is related to the multiple UltraVNC icons, but is something we want to investigate.

https://i.postimg.cc/kq6S4Wk7/Screensho ... 083813.png
https://postimg.cc/BXhJX615

https://i.postimg.cc/Jz80YH7w/Screensho ... 084005.png
https://postimg.cc/vcPGcB6X

Hardware & System Environment:
- Industrial PC: B&R Automation Panel PC 3100 (PPC3100 Series)
- OS: Windows 10 IoT Enterprise / LTSC (Unified Write Filter - UWF enabled)
- Software: UltraVNC Server v1.6.4.0 running as a system service (uvnc_service)
- Uptime: Machines run continuously 24/7 without periodic reboots (but frequently run for many days without rebooting)

Is this tray icon duplication a known bug related to silent service crashes/restarts?

What is the standard parameter in ultravnc.ini to run UltraVNC?
Do you reccomend any operations to avoid this issue?

Thank you for any troubleshooting suggestions!