Hi @Cuzer, I would go back to the previous UGreen USB-C hub that you had. That new RSHTECH hub does not look like a good choice to me. Please refer to my photos below.
- You need to connect the UGreen Hub directly to your iPad.
- Connect your iPad charger and USB-C cable to the USB-C socket on the UGreen Hub marked with PD or a Lightning Bolt. The Blue cable in my picture. Confirm that your iPad is charging before doing anything else.
- Now connect your Mixon 8 to the Hub using a USB-B to A cable. The White cable in my picture.
- Now connect your second MIDI Controller (in my case the Midi Fighter Twister) to the Hub using another USB-B to A cable. The Black cable in my picture.
EDIT: Also, I am suspicious of those cables you are using. Please note that some USB cables are only for charging and do not transmit data. I highly recommend you use high quality USB cables specifically designed for DJ use. I’m using DJ TechTools Chroma Cables in the pictures above.