Howdy Adam! Thank you for the kind words and the bug report. Someone else spotted it a week or so ago :(. I fixed it and the latest version does not have the error (v21.2). Depending on your comfort with google scripts, you can fix the problem one of 3 ways:
1. If you are super comfortable - Go to the new version (v21.2) , open the App Scipt editor, select all, copy, go to your version, open the app script editor, select all, and past.
2. If you are somewhat comfortable - go to your file, open the app script editor, go to line 98 and change it
FROM:
var diceCount = sourceSheet.getRange("BT2").getValue();
TO:
var diceCount = sourceSheet.getRange("BT3").getValue();
3. If any of that sounds scary, clone the new google sheet (v21.2) and migrate over the info from your player, crew, and faction tabs. Your players can help :).