This is no longer typical for me.
I’ve had norns since the first batch, and initially experienced what you describe. Over the last month, however, it’s been part of my daily setup, on for hours at a time, and it’s only crashed once.
One difference between my scenario and yours: with the latest update script, I opened up the file & commented out the line that is leading to a problem:
cp norns-image/config/bashrc /home/we/.bashrc
I did this to make sure that the lines after it get run. Those are:
cd /home/we/norns/sc
./install.sh
I’m not sure whether or not the sc ./install.sh piece would be run as part of normal operations, or even how important it is to the update process; I’m just highlighting it as a measure I took since I’m not experiencing the same degree of instability.