Looks all right to me so after confirming (again) needed/related connection with those two:
uuu -lsusb
lsusb | grep 8M
current proposal of mine might sound weird (at the moment) but please share with us following procedure (that might/should work with your current Librem 5 setup): please do not use Jumpdrive executing command at all, just jump to this one as your very next command:
Negative. I’m suggesting to start script afterwards.