Same issue. I bought a USB hub to connect the tablet via ethernet and charge it with a USB-C cable going up to the hub at the same time, all of which works perfectly fine on my phone but doesn’t on the iPlay 20 Pro. Bummer. I think at this point I’ll get a straight USB-C to USB-A cable and see if I can cascade a simple USB-A hub. Have you tried to do that?
Only once I was able to somehow have a hub-connected 8gb USB stick detected, light blinking and drive shown in the file manager but it didn’t last more than two seconds before turning off and I haven’t been able to reproduce it since.
