On my old laptop Toshiba Portege R930, the two USB port may be disable into the BIOS and run as USB2.
In order to use a QHY294C, I set up the USB3 mode. The camera is recognized with lsusb. When I lauch Ekos, I have to setup optical trains. The telescope are created into the database. But when I want to create a new train, back to the desktop after a few seconds.
I join the log. I don't know who's to blame, the laptop or Ekos.