Since I have not been able to recreate this issue, I can't determine what is going wrong.
In order to help debug further, you can run cubic from the command line.
Simply open a terminal and type "cubic", and press enter.
(Do not use sudo to run cubic. You will be prompted for your sudo password).
Once you encounter the error, copy the output from the terminal, and attach it to this bug. There may be some output there that helps pinpoint the cause of the issue.
Since I have not been able to recreate this issue, I can't determine what is going wrong.
In order to help debug further, you can run cubic from the command line.
Simply open a terminal and type "cubic", and press enter.
(Do not use sudo to run cubic. You will be prompted for your sudo password).
Once you encounter the error, copy the output from the terminal, and attach it to this bug. There may be some output there that helps pinpoint the cause of the issue.