Corsair One Pro a200 won't boot systemrescue

[jon314]

My SSD is failing so I'm trying to use systemrescue (https://www.system-rescue.org/Download/) to clone as much data as possible onto a new SSD, so I don't have to spend hours setting up a new OS and software. The problem is systemrescue doesn't boot. In the boot menu, the USB option is visible but when I select it, the screen flashes and immediately returns to the same menu. I know the USB flash drive it's on is working properly because it boots fine in 3 other computers. I've tried two versions of systemrescue, 10.01 and 9.06. Is there a known issue with the a200 not booting systemrescue?