I haven't tried this morning yet.
To illustrate my above post: the screenshot shows the end of regenerate failing due to docker connection problem (which is running, but I don't see any container starting.
Then I issued the regen command a 2nd time, and the error occurs almost immediately.
Now my shell is borked and I have to restart the shell.
This is with ssh_password="test" and persist_sandbox="true" in my config.toml.