only have radio stuff connected..zero problemo

I am using the Ugreen CM662 device in conjunction with a Microsoft wireless mouse transmitter, a Lenovo ThinkPad Universal Thunderbolt 4 docking station and a Lenovo laptop. I am currently trying to find the reason why my external monitors connected directly to the Lenovo docking station will not power off automatically on the Windows lock screen, but keep waking up (powering back on after a very short power off time) when the Ugreen CM662's switch is set to connect to my Lenovo docking station, but this is not the case when the Ugreen CM662's switch is set to connect to a second laptop that is powered off. A Microsoft wireless mouse transmitter and a wired Microsoft keyboard are connected to the USB outputs of the Ugreen CM662. - These are active when the Ugreen CM662 switch is set to connect to the Lenovo docking station, which in turn is connected to a laptop that is switched on and locked in this situation (it displays the Windows lock screen and keeps trying to switch off the external monitors, but they keep switching back on). I have not yet been able to clearly determine whether the cause of this behaviour is the Ugreen CM662 device. In my case, I can stop the looping effect of the external monitors waking up and switching off by switching the Ugreen CM662 device to a second source, so that the source is a laptop that is switched off. Then the monitors finally switch off successfully and stop waking up again and again.
If anyone has also encountered this problem, please let me know.

I have a Razer Basilisk V3 or similar and a Logitech wireless keyboard (one with Windows and MacOS layout), can't find any problems. Use the switch between Win11 desktop and MacOS/Win10 laptop