USB Stick Plugin for Total Commander (Android)

Is USB Stick compatible with Lollipop?
I tryed a 3in1 otg adapter ma USB stick shows me only one USB device (I would like to view both the sd card and a USB stick to make copy of the sd).
I also tryed to connect a powered USB hub with two sticks but no success. I can view only one

There should be no issues with Lollipop.
I have a Nexus 10 with Android 5.0.1 and the Plugin works well.

The Plugin should detect multiple USB Devices attached to a USB-Hub, but the HUB should have a separate power supply, otherwise it can be an issue of too less power.