Edit: I solved this issue. This firmware is working fine for me with Nacon Compact
Could someone help me? I have the Nacon Wired Compact Controller and cannot get it to work with the PS5. I change the setting under controller devices to usb from bluetooth and then connect it the usual way. I have the keyboard/mouse and Nacon Compact Controller connected to the 3 usb hub which then connects to the xim apex. The Nacon wont even turn on when connected to the usb hub. What am I doing wrong? Thank you for your help in advance!
Did you connect the controller directly to the PS5 first? did you get the prompt of "who is using this"? Just to make sure the controller works

Also I don't think the USB/Bluetooth setting applies to wired only controller devices.
I plugged my Hori wired controller, never had to change any settings. actually I can switch between controllers on the fly, just need to press the home button.
also are you in the latest beta FW...and lastly are you plugging in the controller to far right port (...) after the XIM Apex is fully initiated.
try some of these things if you did not already...fingers crossed for you man!!!!