Really? I've found the opposite. Logged a CS call last week regarding a Java error on the older Combat Panel since update 1.15.0, a fix was just provided in 1.15.4.
Mate, that's a wall of text. Question - what is the power output of your hubs? I have 2x10 port 65w hubs that have no issues supplying power to my MIP, stick, throttle, pedals, collective, ICP and UFC etc
The USB A in the center is for the monitors, the USB c is for the frames.....with all the buttons. Go to the Winwing site and read the manual
https://au.winwingsim.com/view/regular.html
The screens don't show in Simappro, only the mfd frames. The reason you can't see the frames is that you need to connect them via the usb c socket in the frame corner
I did the tutorial on an earlier version of SImappro
Can you see the external monitors in Windows and can you provide a screen shot of Simappro's Device Tab please?
I'm currently at and wont get to my simrig for another day or so