Transfer, no devices connected

Transfer App, no devices connected. MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports)
satechi adapter, usb C to usb 2/3. in the transfer app it doesnt show any of my hardware (OT, DT, Analog Heat 2). i connected them with my satechi adapter and the original cables, then I tried directly with a usb-c to USB -B cable (elektron device-IN). It doesnt work, always shows no devices connected (only the soundcard pops up). I restarted the mac, did a Hardware check, doesnt help. Thanks for your help/tips.