When trying to run simvue_sender as a cron, the Python API ignores my .simvue.toml in $HOME and simvue.toml in $HOME, but instead decided to pick /lustre/home/alahiff/Simvue/execution/2024-12-06/simvue.toml which I had forgotten I had. Note that before running simvue_sender my script changed directory to $HOME, so even if it ignored .simvue.toml it should have seen simvue.toml in the current directory.
Note this doesn't happen when running manually but only as a cron.