I am using Squiggle version 18.104.22.168.
There was a day at my work that there was 3 electrical problems and all computer turned off with Windows still running.
When the computers restarted, 90% of the installed Suiqggle didn't open. I did some research and I figured out that the user.conf file was currupted.
In order to solve the problem, I had to delet this file, run squiggle again, and reconfigure squiggle.
I just want to let you know, maybe you can find a solution to prevent the user.config file be corrupted by hot power downs.