I had some issues with the SUSE Tumbleweed live image when booting from a USB stick. I used the live-fat-stick (https://github.com/cyberorg/live-fat-stick) from Ubuntu to create my USB stick.
If you get a hang during boot where Journaling won't complete you most likely are hitting this issue. What happens here is that it tries to mount a persistence partition, and this will fail and it will just try and try again without succeeding...
This will disable the step of trying to mount the persistent partition.