i have a

BAUM SuperVario2-64

connected via USB. It works with NVDA 2024.1B7 but the control buttons and cursor routing do not work.
Not even when starting without add-ons and after restarting the computer. If I start a previously saved portable version - e.g. 23.3.3 - everything works as desired.
Including the D-Keys and cursor routing.

The crucial lines from the logbook are probably the following:

INFO - brailleInput.initialize (18:26:14.706) - MainThread (9420):
Braille input initialized
INFO - braille.initialize (18:26:14.706) - MainThread (9420):
Using liblouis version 3.28.0
INFO - braille.initialize (18:26:14.706) - MainThread (9420):
Using pySerial version 3.5
INFO - braille.BrailleHandler._setDisplay (18:26:14.712) - MainThread (9420):
Loaded braille display driver 'noBraille', current display has 0 cells.
DEBUGWARNING - hwPortUtils.listUsbDevices (18:26:14.713) - ThreadPoolExecutor-0_0 (7056):
Couldn't get DEVPKEY_Device_BusReportedDeviceDesc for {'hardwareID': 'USB\VID_0A12&PID_0001&REV_8891', 'usbID': 'VID_0A12&PID_0001', 'devicePath': '\\?\usb#vid_0a12&pid_0001#6&229efb56&0&14#{a5dcbf10-6530-11d2-901f-00c04fb951ed}'}: [WinError 1168] Element nicht gefunden.
DEBUGWARNING - hwPortUtils.listUsbDevices (18:26:14.714) - ThreadPoolExecutor-0_0 (7056):
Couldn't get DEVPKEY_Device_BusReportedDeviceDesc for {'hardwareID': 'USB\VID_046D&PID_0825&REV_0012', 'usbID': 'VID_046D&PID_0825', 'devicePath': '\\?\usb#vid_046d&pid_0825#104fc6a0#{a5dcbf10-6530-11d2-901f-00c04fb951ed}'}: [WinError 1168] Element nicht gefunden.
INFO - brailleDisplayDrivers.baum.BrailleDisplayDriver.init (18:26:14.863) - ThreadPoolExecutor-0_0 (7056):
Found Baum SVario-64 connected via serial (COM3)
INFO - braille.BrailleHandler._setDisplay (18:26:14.869) - ThreadPoolExecutor-0_0 (7056):
Loaded braille display driver 'baum', current display has 64 cells.
...
ERROR - hwIo.base.IoBase._notifyReceive (18:26:23.338) - hwIo.ioThread.IoThread (8048):
Traceback (most recent call last):
File "hwIo\base.pyc", line 204, in _notifyReceive
File "brailleDisplayDrivers\baum.pyc", line 244, in _onReceive
File "brailleDisplayDrivers\baum.pyc", line 264, in _handleResponse
File "brailleDisplayDrivers\baum.pyc", line 354, in init
AssertionError
ERROR - hwIo.base.IoBase._notifyReceive (18:26:25.241) - hwIo.ioThread.IoThread (8048):
Traceback (most recent call last):
File "hwIo\base.pyc", line 204, in _notifyReceive
File "brailleDisplayDrivers\baum.pyc", line 244, in _onReceive
File "brailleDisplayDrivers\baum.pyc", line 264, in _handleResponse
File "brailleDisplayDrivers\baum.pyc", line 354, in init

The complete logbook is saved in case it is needed.