If you're running into issues and want to restart your Fathom app (and you're on Windows), follow these instructions. Here's a quick (30 seconds) video showing how to quickly restart your Fathom app.
Here’s the command to run at the command prompt: taskkill /IM Fathom.exe /F
After doing so, you should see Fathom acting as normal, but if not, please let us know.