HI Igor,
first of all thanks for taking care of my issue.
You say that the USB is not issue but the ASIO4all driver.
I do not agree with your statement.
Until the last Microsoft update 21H2 everything worked fine with the ASIO4all driver under WIndows10. On my system I used the Version 2.14 ASIO4all.
For many musicians the ASIO4all driver is a fine stuff, because you can use the internal sound card or cheap external ones.
Behringer says that the UMC22 audiointerface is compliant with Win10 by using the ASIO4all. This was the case until the last update, cause eth worked fine without cracks or unwanted noise.
Due to that the last update is why I have problems with my sound interface.
I'm not sure if the USB regulation is the reason but sth changed to the Windows version before.
For me ASIO4all is the standard because it is used by many. I would say Microsoft should check first if ASIO4all would work with their update.
A solution for that issue would be really appreciated.
Thanks
Markus