Thank you. That worked perfectly! It even popped up a nice UI for me, to do the group membership change.
I was worried I'd have to start a new game, and lose all the progress we've made.

Thanks again. I appreciate it.
Have a great weekened!

Problem: I am no longer able to enter vehicles of any type in my save game (it's attached). I'm running Factorio v1.72. What happened: My car was blown up, by biters, while clearing out a biter nest (not the first time this has happened to me). After my car was destroyed, I am no longer able to ente...