List boxes:
Options > General > Most-recently-used
Options > General > Run these cmds every time Rhino starts
These commands get duplicated somehow.
I haven’t looked into this very far and haven’t checked how to consistently repeat this behavior. I just installed the newest version and noticed my AutoCPlane didn’t start (had noticed that previously as well but didn’t investigate further at that time). Went into the options and found both lists to be populated with the same entries 8 times. Delete the duplicate entries and restarted. Launced 2 instances and closed latest last. Checked back into the lists and the entries were now duplicated once.