Hi Igor,
The System tray Icon of "USB Safely Remove" gets disappeared during 'Return Back' of devices, when multiple devices are connected in USB ports. Please note that I have selected "Options-> Look & Feel -> Hide Icons when there are no devices to be stopped." when trying this scenario. I have uploaded this in Youtube. http://www.youtube.com/watch?v=N1g6GSBdWzU.
Please look into this issue.
Edit: I have sent you the Bug Report through "Help -> Report a Bug".
Note: I have tried reinstalling "USB safely remove" several times. But the problem still persists.
Please help.
Thanks,
Bennet.