@GolfMike
I had a similar issue too on my newly acquired (and Jailbreaked
) Paperwhite 3. Looking at the code on github I also saw this issue reported:
https://github.com/barsanuphe/librariansync/issues/6
Turns out it's exactly the issue for me. Turn off wifi and it starts working.
I guess the troubleshooting steps would be:
1- if you don't see the "sending command" overlay show up, you don't have python properly installed
2- if you're stuck on "sending command" and it then fails with "something went very wrong" then it's because of the wifi